◎2004 RZ164の軌道と予報位置です
美星で行なわれているスカイ・サーベイで，12月８日夜，日々運動が 21ﾟ以上
の超高速で動く，11等級の明るい天体がキャッチされました．同所の浅見敦夫氏
の調査では，この天体は，すでに９月に発見されていた2004 RZ164であることが，
判明しました．
我が国では，この小惑星は，雄踏の和久田俊一氏により，これまで追跡されて
いました．12月７日の同氏の光度は，12.0等，８日の美星での光度は，11.5等で
した．小惑星は，2004年12月８日18時に地球に 0.01798AUまで接近していました．
なお，最接近は，過ぎましたが，小惑星は，今後，しばらく明るく観測できます．
No identification:
2004 RZ164
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5 MPC
M 15.80262 (2000.0) P Q
n 0.24162072 Peri. 344.24215 +0.49843273 -0.83585877
a 2.5529752 Node 75.36239 +0.81886312 +0.36680899
e 0.6150075 Incl. 13.75239 +0.28465418 +0.40840088
P 4.08 H 18.9 G 0.15 U 3
Residuals in seconds of arc
040823 E12 0.6- 0.4+ 041031 474 0.2- 0.1+ 041206 379 0.1+ 0.5+
040823 E12 0.5- 0.4- 041031 474 0.2- 0.1- 041206 379 0.2- 0.3-
040823 E12 0.2- 0.0 041112 413 0.1- 0.0 041206 379 0.5+ 0.5+
040823 E12 0.4- 0.0 041112 413 0.1- 0.0 041206 379 0.1- 0.2-
040913 E12 0.8- 0.4+ 041112 413 0.1- 0.0 041206 379 0.1+ 0.3+
040913 E12 0.1- 0.1- 041118 E12 0.2+ 0.0 041206 938 0.0 0.9+
040913 E12 0.0 0.5- 041118 E12 0.3+ 0.2- 041206 938 0.3+ 0.9+
040913 E12 0.1- 0.1+ 041118 E12 0.1+ 0.1- 041206 938 0.4+ 0.8+
040914 E12 0.7- 0.5+ 041118 E12 0.1+ 0.2+ 041206 938 0.2+ 0.8+
040914 E12 0.1+ 0.3+ 041118 413 0.1- 0.0 041206 938 0.0 1.3+
040914 E12 0.1- 0.4+ 041118 413 0.1- 0.0 041206 938 0.3+ 0.5+
040914 E12 0.2- 0.9- 041123 413 0.0 0.1- 041207 448 0.2+ 0.1+
040914 474 0.3- 0.1+ 041123 413 0.0 0.1- 041207 448 0.4+ 0.8+
040914 474 0.2- 0.2+ 041123 413 0.0 0.1- 041207 448 0.2+ 0.3-
040914 474 0.2- 0.2+ 041124 413 0.0 0.0 041207 448 0.3+ 0.4+
040918 E12 0.0 0.2+ 041124 413 0.0 0.1- 041207 448 0.2+ 0.2-
040918 E12 0.2- 0.3+ 041124 413 0.0 0.1- 041207 379 0.0 0.1-
040918 E12 0.1- 0.1- 041204 938 0.4+ 0.4+ 041207 379 0.0 0.4-
040918 E12 0.2- 0.2+ 041204 938 0.3+ 0.0 041207 379 0.3- 0.4-
040918 E12 0.4+ 0.0 041204 938 0.5+ 0.0 041207 379 0.1+ 0.4-
040918 E12 0.4+ 0.7+ 041204 938 0.5+ 1.0+ 041207 379 0.1- 0.3-
040918 E12 0.1+ 0.2- 041204 938 0.0 0.4+ 041207 379 0.1- 0.7-
040918 E12 0.1+ 0.1- 041204 938 0.4+ 0.2+ 041207 379 0.2+ 0.3-
040918 E12 0.6- 0.5+ 041204 938 0.3+ 0.1- 041207 379 0.1+ 0.3-
040918 E12 0.9- 0.0 041204 938 0.3- 0.8+ 041207 379 0.1- 0.6-
040918 E12 0.4- 1.0- 041204 938 0.0 0.5+ 041207 379 0.3- 0.7-
040918 E12 0.3+ 0.5+ 041205 201 0.4+ 0.0 041207 379 0.0 0.6-
040919 474 0.0 0.5+ 041205 201 0.1+ 0.5+ 041207 379 0.1- 0.4-
040919 474 0.5+ 0.1+ 041205 201 0.5+ 0.0 041207 379 0.1- 0.3-
040919 474 0.1- 0.1+ 041205 201 0.2+ 0.4+ 041207 379 0.1+ 0.7-
040920 E14 0.1+ 0.3+ 041205 201 0.3+ 0.0 041207 379 0.3- 0.5-
040920 E14 0.3- 0.3- 041205 201 0.1+ 0.6+ 041207 379 0.0 0.7-
040920 E14 0.2+ 0.0 041205 201 0.1+ 0.6+ 041207 379 0.2- 0.6-
040920 474 0.1+ 0.1+ 041205 201 0.4+ 0.9+ 041207 379 0.2+ 0.3-
040920 474 0.4+ 0.4- 041205 201 0.2- 0.1+ 041207 379 0.4- 0.8-
040920 474 0.1+ 0.1- 041205 201 0.1+ 0.2+ 041207 379 0.2- 0.5-
040920 474 0.1- 0.0 041205 201 0.1+ 0.2+ 041207 379 0.0 0.4-
040921 428 0.3- 0.1- 041206 704 0.7- 0.3+ 041207 379 0.1- 0.6-
040921 428 0.3+ 0.0 041206 704 0.2- 0.5+ 041207 379 0.1- 0.4-
040921 428 0.0 0.1+ 041206 704 0.4- 0.2- 041207 379 0.1+ 0.4-
040926 413 0.0 0.1- 041206 704 0.1- 0.2+ 041207 379 0.2- 0.8-
040926 413 0.1+ 0.0 041206 704 0.1- 0.4+ 041207 379 0.4- 0.5-
040926 413 0.1+ 0.0 041206 379 0.0 0.5- 041207 379 0.2- 0.8-
041008 474 0.0 0.5+ 041206 379 0.0 0.7- 041207 379 0.5- 0.8-
041008 474 0.0 0.5+ 041206 379 0.2+ 0.2+ 041207 587 0.6- 0.4-
041008 474 0.3+ 0.0 041206 379 0.3- 0.1- 041207 587 0.2+ 0.2+
041011 428 0.0 0.4- 041206 379 0.1+ 0.1+ 041207 587 0.5- 0.6-
041011 428 0.1- 0.1- 041206 379 0.3- 0.3- 041208 300 0.8+ 1.3+
041011 428 0.1- 0.2+ 041206 379 0.3- 0.5- 041208 300 1.1+ 1.6+
041012 E12 1.8+ 0.7+ 041206 379 0.1+ 0.2+ 041208 300 0.1- 0.1-
041012 E12 0.6- 0.2- 041206 379 0.1- 0.1- 041208 300 (4.0+ 1.7+)
041012 E12 0.1- 0.2- 041206 379 0.2- 0.2- 041208 300 0.4+ 0.7+
041012 E12 0.7+ 0.8+ 041206 379 0.4+ 0.2+ 041208 300 0.3- 0.5+
041015 E14 0.0 0.2- 041206 379 0.1+ 0.4+ 041208 300 0.0 1.0+
041015 E14 0.0 0.2- 041206 379 0.0 0.1- 041208 300 0.3- 0.0
041015 E14 0.3+ 0.2- 041206 379 0.0 0.4- 041208 300 0.3- 0.1-
041030 474 0.0 0.2+ 041206 379 0.1+ 0.3+ 041208 300 0.0 1.4+
041030 474 0.0 0.1+ 041206 379 0.0 0.5- 041208 300 0.8- 0.0
041030 474 0.1+ 0.1+ 041206 379 0.1- 0.5- 041208 300 0.4- 0.3+
041031 474 0.1- 0.1+ 041206 379 0.0 0.0
OBSERVATORY: 300 133.544570.823371+0.565729Bisei Spaceguard Center-BATTeRS
Date Time (UT) R. A. (2000) Decl. Delta R Mag. Daily
Motion Obj. h A Sun h A
Year Mo. D. h m s h m s ｡ , " AU AU V ,
｡ ｡ ｡ ｡ ｡
2004 12 8 08 00 00 01 52 39.5 +17 41 26 0.01799 0.998 11.9 1312.4
/ 18.8 +36.6 273 - 1.7 63
2004 12 8 09 00 00 01 53 54.1 +18 33 10 0.01798 0.998 11.8 1308.0
/ 18.7 +49.1 282 -13.1 71
2004 12 8 10 00 00 01 55 08.1 +19 24 47 0.01798 0.998 11.8 1302.3
/ 18.6 +61.2 294 -25.0 79
2004 12 8 11 00 00 01 56 21.9 +20 16 12 0.01799 0.998 11.8 1296.8
/ 18.7 +71.7 317 -37.2 86
2004 12 8 12 00 00 01 57 36.1 +21 07 23 0.01800 0.998 11.8 1290.7
/ 18.8 +76.6 7 -49.6 95
2004 12 8 13 00 00 01 58 51.0 +21 58 16 0.01803 0.998 11.8 1284.2
/ 19.2 +71.0 53 -61.7 107
2004 12 8 14 00 00 02 00 07.2 +22 48 48 0.01805 0.999 11.8 1278.7
/ 19.6 +60.5 75 -72.8 129
2004 12 8 15 00 00 02 01 25.1 +23 38 59 0.01809 0.999 11.8 1273.4
/ 20.1 +48.9 87 -78.3 182
2004 12 8 16 00 00 02 02 45.1 +24 28 48 0.01813 0.999 11.8 1268.4
/ 20.7 +37.1 96 -72.1 233
2004 12 8 17 00 00 02 04 07.6 +25 18 14 0.01817 0.999 11.8 1264.9
/ 21.3 +25.6 104 -60.9 254
2004 12 8 18 00 00 02 05 32.8 +26 07 20 0.01822 0.999 11.8 1261.7
/ 21.9 +14.5 112 -48.8 266
2004 12 8 19 00 00 02 07 00.7 +26 56 06 0.01827 0.999 11.8 1258.9
/ 22.5 + 4.1 120 -36.4 274
2004 12 8 20 00 00 02 08 31.3 +27 44 32 0.01833 0.999 11.8 1257.0
/ 23.0 - 5.3 129 -24.2 282
2004 12 8 21 00 00 02 10 04.5 +28 32 43 0.01839 0.999 11.8 1254.9
/ 23.4 -13.4 139 -12.3 289
2004 12 8 22 00 00 02 11 40.0 +29 20 40 0.01846 0.999 11.8 1252.2
/ 23.8 -19.6 151 - 1.0 297
. . . .
. . .
2004 12 9 08 00 00 02 28 06.7 +37 05 50 0.01923 1.000 11.8 1152.0
/ 23.0 +38.2 247 - 1.7 63
2004 12 9 09 00 00 02 29 41.6 +37 50 00 0.01933 1.000 11.8 1133.5
/ 22.9 +49.6 250 -13.0 71
2004 12 9 10 00 00 02 31 15.6 +38 33 28 0.01943 1.001 11.8 1114.0
/ 23.0 +61.1 251 -25.0 78
2004 12 9 11 00 00 02 32 49.3 +39 16 10 0.01954 1.001 11.8 1094.9
/ 23.2 +72.4 248 -37.2 86
2004 12 9 12 00 00 02 34 23.0 +39 58 04 0.01965 1.001 11.8 1075.9
/ 23.5 +82.4 222 -49.5 95
2004 12 9 13 00 00 02 35 57.3 +40 39 08 0.01977 1.001 11.8 1057.3
/ 24.0 +81.1 136 -61.7 106
2004 12 9 14 00 00 02 37 32.7 +41 19 21 0.01989 1.001 11.9 1040.4
/ 24.6 +70.9 118 -72.7 128
2004 12 9 15 00 00 02 39 09.7 +41 58 44 0.02002 1.001 11.9 1024.8
/ 25.3 +60.0 116 -78.4 182
2004 12 9 16 00 00 02 40 48.8 +42 37 18 0.02015 1.001 11.9 1010.6
/ 26.0 +49.2 118 -72.2 233
2004 12 9 17 00 00 02 42 30.3 +43 15 06 0.02029 1.001 11.9 998.8
/ 26.9 +38.8 121 -61.1 254
2004 12 9 18 00 00 02 44 14.7 +43 52 10 0.02043 1.001 11.9 988.6
/ 27.7 +28.9 126 -48.9 266
2004 12 9 19 00 00 02 46 02.0 +44 28 36 0.02057 1.002 11.9 979.6
/ 28.5 +19.7 131 -36.6 274
2004 12 9 20 00 00 02 47 52.2 +45 04 26 0.02072 1.002 11.9 972.4
/ 29.2 +11.4 138 -24.3 282
2004 12 9 21 00 00 02 49 45.3 +45 39 44 0.02087 1.002 12.0 965.8
/ 29.8 + 4.3 145 -12.5 289
2004 12 9 22 00 00 02 51 41.1 +46 14 36 0.02102 1.002 12.0 959.3
/ 30.3 - 1.4 153 - 1.1 297
. . . .
. . .
2004 12 10 08 00 00 03 11 42.6 +51 42 05 0.02260 1.003 12.1 839.0
/ 30.5 +35.2 227 - 1.6 63
2004 12 10 09 00 00 03 13 38.5 +52 12 09 0.02277 1.003 12.2 819.8
/ 30.6 +44.1 228 -13.0 71
2004 12 10 10 00 00 03 15 33.1 +52 41 31 0.02294 1.003 12.2 800.0
/ 30.7 +52.9 226 -24.9 78
2004 12 10 11 00 00 03 17 26.7 +53 10 07 0.02312 1.003 12.2 780.7
/ 31.1 +61.0 220 -37.1 86
2004 12 10 12 00 00 03 19 19.9 +53 37 56 0.02330 1.003 12.2 761.8
/ 31.5 +67.5 207 -49.5 94
2004 12 10 13 00 00 03 21 13.1 +54 04 56 0.02348 1.004 12.2 743.8
/ 32.2 +70.3 184 -61.7 106
2004 12 10 14 00 00 03 23 06.9 +54 31 07 0.02367 1.004 12.3 727.7
/ 33.0 +68.2 161 -72.7 128
2004 12 10 15 00 00 03 25 01.8 +54 56 30 0.02385 1.004 12.3 713.2
/ 33.9 +62.3 146 -78.5 181
2004 12 10 16 00 00 03 26 58.4 +55 21 07 0.02405 1.004 12.3 700.5
/ 34.9 +54.8 139 -72.4 233
2004 12 10 17 00 00 03 28 57.0 +55 45 00 0.02424 1.004 12.3 690.3
/ 35.9 +46.7 137 -61.2 255
2004 12 10 18 00 00 03 30 58.2 +56 08 14 0.02444 1.004 12.4 681.9
/ 37.0 +38.6 138 -49.0 266
2004 12 10 19 00 00 03 33 02.1 +56 30 52 0.02464 1.004 12.4 675.1
/ 38.0 +30.8 140 -36.7 275
2004 12 10 20 00 00 03 35 08.9 +56 52 58 0.02484 1.004 12.4 670.1
/ 38.9 +23.6 144 -24.5 282
2004 12 10 21 00 00 03 37 18.5 +57 14 38 0.02504 1.004 12.4 666.0
/ 39.7 +17.1 149 -12.6 289
2004 12 10 22 00 00 03 39 30.8 +57 35 55 0.02525 1.005 12.4 662.2
/ 40.3 +11.7 155 - 1.3 297
. . . .
. . .
2004 12 11 08 00 00 04 02 18.2 +60 54 38 0.02732 1.006 12.6 578.2
/ 40.8 +31.2 215 - 1.6 63
2004 12 11 09 00 00 04 04 29.1 +61 12 48 0.02753 1.006 12.7 563.4
/ 40.9 +38.1 216 -13.0 71
2004 12 11 10 00 00 04 06 38.1 +61 30 28 0.02775 1.006 12.7 548.1
/ 41.2 +45.0 215 -24.9 78
2004 12 11 11 00 00 04 08 45.3 +61 47 36 0.02796 1.006 12.7 533.2
/ 41.6 +51.5 211 -37.1 86
2004 12 11 12 00 00 04 10 51.3 +62 04 10 0.02818 1.006 12.7 518.7
/ 42.2 +57.0 204 -49.4 94
2004 12 11 13 00 00 04 12 56.3 +62 20 07 0.02840 1.006 12.8 505.0
/ 43.0 +60.7 193 -61.6 106
2004 12 11 14 00 00 04 15 00.9 +62 35 27 0.02862 1.006 12.8 492.9
/ 43.9 +61.9 180 -72.7 128
2004 12 11 15 00 00 04 17 05.7 +62 50 12 0.02884 1.007 12.8 482.3
/ 45.0 +60.2 166 -78.6 181
2004 12 11 16 00 00 04 19 11.3 +63 04 20 0.02907 1.007 12.8 473.4
/ 46.2 +56.1 157 -72.5 233
2004 12 11 17 00 00 04 21 18.2 +63 17 55 0.02930 1.007 12.8 466.6
/ 47.5 +50.6 151 -61.4 255
2004 12 11 18 00 00 04 23 26.7 +63 31 00 0.02953 1.007 12.9 461.5
/ 48.7 +44.4 148 -49.2 266
2004 12 11 19 00 00 04 25 37.4 +63 43 37 0.02976 1.007 12.9 457.9
/ 49.9 +38.0 148 -36.8 275
2004 12 11 20 00 00 04 27 50.3 +63 55 50 0.02999 1.007 12.9 455.8
/ 51.0 +31.7 149 -24.6 282
2004 12 11 21 00 00 04 30 05.5 +64 07 44 0.03023 1.007 12.9 454.5
/ 51.9 +25.9 152 -12.7 289
2004 12 11 22 00 00 04 32 23.1 +64 19 22 0.03046 1.007 12.9 453.6
/ 52.6 +20.6 155 - 1.4 297
. . . .
. . .
2004 12 12 08 00 00 04 55 51.0 +66 08 38 0.03281 1.009 13.1 403.5
/ 52.6 +27.7 207 - 1.6 63
2004 12 12 09 00 00 04 58 04.0 +66 18 47 0.03305 1.009 13.2 392.7
/ 52.7 +33.3 209 -12.9 71
2004 12 12 10 00 00 05 00 14.4 +66 28 39 0.03329 1.009 13.2 381.4
/ 52.9 +39.1 209 -24.8 78
2004 12 12 11 00 00 05 02 22.3 +66 38 11 0.03353 1.009 13.2 370.3
/ 53.3 +44.7 207 -37.0 85
2004 12 12 12 00 00 05 04 27.9 +66 47 21 0.03377 1.009 13.2 359.6
/ 54.0 +49.9 204 -49.4 94
2004 12 12 13 00 00 05 06 31.7 +66 56 06 0.03401 1.009 13.2 349.5
/ 54.9 +54.1 197 -61.5 106
2004 12 12 14 00 00 05 08 34.0 +67 04 27 0.03425 1.009 13.2 340.7
/ 55.9 +56.7 189 -72.7 127
2004 12 12 15 00 00 05 10 35.4 +67 12 21 0.03449 1.010 13.3 333.2
/ 57.2 +57.2 178 -78.6 180
2004 12 12 16 00 00 05 12 36.5 +67 19 50 0.03474 1.010 13.3 327.2
/ 58.6 +55.7 168 -72.6 233
2004 12 12 17 00 00 05 14 37.8 +67 26 53 0.03499 1.010 13.3 322.9
/ 60.0 +52.4 161 -61.5 255
2004 12 12 18 00 00 05 16 39.9 +67 33 34 0.03523 1.010 13.3 320.1
/ 61.4 +47.9 156 -49.3 266
2004 12 12 19 00 00 05 18 43.1 +67 39 55 0.03548 1.010 13.3 318.6
/ 62.7 +42.7 153 -37.0 275
2004 12 12 20 00 00 05 20 47.8 +67 45 58 0.03573 1.010 13.4 318.4
/ 63.8 +37.2 153 -24.7 282
2004 12 12 21 00 00 05 22 54.2 +67 51 46 0.03599 1.010 13.4 318.9
/ 64.7 +31.8 154 -12.9 289
2004 12 12 22 00 00 05 25 02.3 +67 57 23 0.03624 1.011 13.4 319.7
/ 65.4 +26.7 156 - 1.5 297
. . . .
. . .
2004 12 13 08 00 00 05 46 42.7 +68 51 15 0.03876 1.012 13.6 290.9
/ 64.2 +25.0 202 - 1.5 63
2004 12 13 09 00 00 05 48 44.1 +68 56 29 0.03901 1.012 13.6 282.8
/ 64.1 +29.7 204 -12.8 71
2004 12 13 10 00 00 05 50 42.6 +69 01 35 0.03926 1.012 13.6 274.3
/ 64.3 +34.8 206 -24.7 78
2004 12 13 11 00 00 05 52 38.2 +69 06 30 0.03951 1.012 13.6 266.0
/ 64.7 +40.0 205 -37.0 85
2004 12 13 12 00 00 05 54 30.9 +69 11 13 0.03976 1.012 13.6 257.8
/ 65.3 +45.0 204 -49.3 94
2004 12 13 13 00 00 05 56 21.2 +69 15 40 0.04002 1.012 13.7 250.2
/ 66.2 +49.4 200 -61.5 105
2004 12 13 14 00 00 05 58 09.3 +69 19 50 0.04027 1.013 13.7 243.6
/ 67.4 +52.8 193 -72.7 127
2004 12 13 15 00 00 05 59 55.8 +69 23 42 0.04053 1.013 13.7 238.2
/ 68.8 +54.7 185 -78.7 180
2004 12 13 16 00 00 06 01 41.2 +69 27 16 0.04079 1.013 13.7 234.0
/ 70.2 +54.9 177 -72.8 233
2004 12 13 17 00 00 06 03 26.1 +69 30 31 0.04104 1.013 13.7 231.3
/ 71.8 +53.2 168 -61.6 255
2004 12 13 18 00 00 06 05 10.9 +69 33 30 0.04130 1.013 13.7 229.9
/ 73.3 +50.1 162 -49.4 266
2004 12 13 19 00 00 06 06 56.2 +69 36 13 0.04156 1.013 13.7 229.6
/ 74.7 +45.8 158 -37.1 275
2004 12 13 20 00 00 06 08 42.3 +69 38 43 0.04183 1.013 13.8 230.4
/ 75.8 +41.0 156 -24.9 282
2004 12 13 21 00 00 06 10 29.6 +69 41 02 0.04209 1.014 13.8 231.8
/ 76.7 +36.0 155 -13.0 289
2004 12 13 22 00 00 06 12 18.1 +69 43 13 0.04235 1.014 13.8 233.4
/ 77.4 +31.0 156 - 1.6 297
2004 12 13 23 00 00 06 14 07.8 +69 45 18 0.04261 1.014 13.8 235.2
/ 77.7 +26.4 158 + 8.9 306
NAKANO
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write mail from CFAD0::NAKANO on 2004-12-08 23:58:55(JST).
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