"Pseudo-MPEC" for ZTF00hf = ZTF00YB = ZTF01Vs = ZTF01Xb
Created 2018 Sep 22 18:15:53 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
This is another lightweight bit of trash, similar to the recently found ZTF00Y9 = ZTF00Yp = ZTF00ah and ZTF00V9 = ZTF00Vv = ZTF00Y5. As with those two objects, it's small and (based on its high area/mass ratio) very lightweight. It's probably about a meter or two across, with a mass somewhere around 50 grams, plus or minus a lot.
It was recovered as ZTF01Vs on 2018 Sep 21, and again as ZTF01Xb the next day.
Astrometry:
ZTF00YB C2018 09 02.33945 00 05 01.61 +12 44 09.6 UNEOCPI41
ZTF00YB C2018 09 02.33979 00 05 06.03 +12 44 22.9 UNEOCPI41
ZTF00YB C2018 09 02.34039 00 05 13.96 +12 44 46.9 16.29gUNEOCPI41
ZTF00YB C2018 09 02.34074 00 05 18.46 +12 45 00.2 16.29gUNEOCPI41
ZTF00YB C2018 09 02.36489 00 10 28.81 +12 59 24.2 UNEOCPI41
ZTF00YB C2018 09 02.36524 00 10 33.18 +12 59 35.0 UNEOCPI41
ZTF00hf C2018 09 08.32161 00 24 20.44 +13 06 58.6 16.23gUNEOCPI41
ZTF00hf C2018 09 08.32196 00 24 24.87 +13 07 08.2 16.23gUNEOCPI41
ZTF00hf C2018 09 08.34809 00 30 04.32 +13 18 26.3 UNEOCPI41
ZTF00hf C2018 09 08.34844 00 30 08.89 +13 18 35.8 UNEOCPI41
ZTF00hf C2018 09 08.38783 00 38 57.69 +13 31 36.6 UNEOCPI41
ZTF00hf C2018 09 08.38818 00 39 02.62 +13 31 43.4 UNEOCPI41
ZTF01Vs C2018 09 21.34927400 20 44.27 +13 06 59.1 15.47RUNEOCPI41
ZTF01Vs C2018 09 21.34962100 20 48.06 +13 07 03.4 15.47RUNEOCPI41
ZTF01Vs C2018 09 21.35338200 21 29.86 +13 07 44.2 15.51RUNEOCPI41
ZTF01Vs C2018 09 21.35373000 21 33.75 +13 07 48.1 15.51RUNEOCPI41
ZTF01Xb C2018 09 22.27665223 09 58.34 +11 13 24.6 15.64gUNEOCPI41
ZTF01Xb C2018 09 22.27699923 10 03.31 +11 13 41.5 15.64gUNEOCPI41
ZTF01Xb C2018 09 22.28451823 11 52.05 +11 19 39.7 15.66gUNEOCPI41
ZTF01Xb C2018 09 22.28486523 11 56.94 +11 19 55.8 15.66gUNEOCPI41
Station data:
(I41) Palomar Mountain--ZTF (N33.357340 W116.859780) US/California.
Observer A. U. Tomatic. Measurer Q.-Z. Ye.
Orbital elements: ZTF00hf = ZTF00YB = ZTF01Vs = ZTF01Xb
Perigee 2018 Sep 21.905838 +/- 0.000573 TT = 21:44:24 (JD 2458383.405838)
Epoch 2018 Sep 22.0 TT; AMR 36.654 +/- 0.25 m2/kg Gray
M 28.608506 +/- 0.17 (J2000 equator)
n 303.820663883 +/- 0.0021 Peri. 256.780479 +/- 0.044
a 47299.72697 +/- 0.218 Node 286.764874 +/- 0.006
e 0.75060379 +/- 0.000161 Incl. 14.930023 +/- 0.0046
P1706.24m/1.185d H 31.5 G 0.15 U 8.6
q 11796.37260 +/- 7.63 Q 82803.08134 +/- 7.44
From 20 observations 2018 Sept. 2-22; mean residual 26".283
Residuals in arcseconds: 180902 I41 20.5- 3.65- 180908 I41 66.1- 20.5- 180921 I41 .813+ 1.49+ 180902 I41 18.2- 2.98- 180908 I41 33.8- 11.3- 180921 I41 .203+ 1.72+ 180902 I41 12.3- 1.23- 180908 I41 33.6- 9.96- 180922 I41 12.2- 3.36- 180902 I41 10.7- .879- 180908 I41 30.5+ 3.54+ 180922 I41 12.2- 3.16- 180902 I41 74.0+ 19.5+ 180908 I41 32.5+ 4.90+ 180922 I41 15.3+ 2.56+ 180902 I41 72.9+ 18.9+ 180921 I41 12.0+ 1.39+ 180922 I41 15.3+ 2.83+ 180908 I41 65.3- 20.4- 180921 I41 10.2+ 1.76+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta elong mag " sig PA ---- -- -- -- ------------- ----------- ------ ----- --- ---- --- 2018 09 22 00 20 21 33.733 +04 51 56.76 34580 126.4 15.3 137 74 2018 09 22 01 21 09 37.065 +07 44 10.40 43780 137.9 15.5 46.8 73 2018 09 22 02 21 42 16.199 +09 28 56.99 51551 145.4 15.6 7.88 58 2018 09 22 03 22 07 05.669 +10 40 27.53 58153 150.8 15.7 13.1 89 2018 09 22 04 22 27 19.012 +11 32 54.83 63767 155.0 15.8 24.5 85 2018 09 22 05 22 44 35.031 +12 13 17.72 68523 158.2 15.9 31.4 84 2018 09 22 06 22 59 50.689 +12 45 26.70 72510 160.8 15.9 35.4 84 2018 09 22 07 23 13 41.922 +13 11 39.24 75796 162.8 15.9 37.7 84 2018 09 22 08 23 26 33.102 +13 33 22.19 78429 164.2 16.0 38.7 84 2018 09 22 09 23 38 41.847 +13 51 32.65 80446 165.1 16.0 38.8 84 2018 09 22 10 23 50 21.693 +14 06 49.02 81871 165.4 16.0 38.2 85 2018 09 22 11 00 01 43.700 +14 19 37.07 82722 165.3 16.0 36.9 85 2018 09 22 12 00 12 57.515 +14 30 13.54 83008 164.7 16.1 34.9 85 2018 09 22 13 00 24 12.156 +14 38 47.98 82734 163.6 16.1 32.4 85 2018 09 22 14 00 35 36.677 +14 45 23.59 81895 162.2 16.1 29.2 85 2018 09 22 15 00 47 20.833 +14 49 57.20 80482 160.5 16.1 25.2 85 2018 09 22 16 00 59 35.881 +14 52 18.18 78477 158.5 16.2 20.3 84 2018 09 22 17 01 12 35.661 +14 52 06.16 75857 156.1 16.2 14.2 81 2018 09 22 18 01 26 38.244 +14 48 46.45 72583 153.4 16.1 6.62 69 2018 09 22 19 01 42 08.668 +14 41 21.43 68609 150.3 16.1 5.02 127 2018 09 22 20 01 59 43.848 +14 28 13.60 63868 146.6 16.1 18.3 104 2018 09 22 21 02 20 22.200 +14 06 29.59 58269 142.1 16.0 37.9 100 2018 09 22 22 02 45 44.656 +13 30 35.62 51683 136.4 15.9 68.0 100 2018 09 22 23 03 19 07.490 +12 28 27.48 43931 128.7 15.7 120 100 2018 09 23 00 04 08 05.422 +10 28 40.60 34752 117.1 15.6 226 102 2018 09 23 01 05 36 08.228 +05 42 09.61 23874 95.7 15.5 528 104 2018 09 23 02 09 41 57.524 -09 34 56.67 12895 35.5 18?? 1810 102 2018 09 23 03 17 12 03.915 -07 07 41.50 16917 78.3 15.5 887 77 2018 09 23 04 19 41 45.774 +02 28 50.42 28542 115.6 15.2 225 74 2018 09 23 05 20 47 01.932 +06 34 33.65 38708 131.5 15.4 71.9 74 2018 09 23 06 21 27 01.954 +08 49 02.24 47268 141.0 15.6 15.8 68 2018 09 23 07 21 55 45.849 +10 15 09.14 54518 147.5 15.7 11.1 90 2018 09 23 08 22 18 20.499 +11 15 43.44 60683 152.4 15.8 25.2 84 2018 09 23 09 22 37 08.543 +12 00 59.17 65920 156.2 15.8 33.3 83 2018 09 23 10 22 53 27.087 +12 36 13.61 70340 159.2 15.9 38.1 83 2018 09 23 11 23 08 02.457 +13 04 27.67 74023 161.6 15.9 40.7 84 2018 09 23 12 23 21 24.841 +13 27 31.95 77027 163.5 16.0 42.0 84 2018 09 23 13 23 33 55.289 +13 46 37.49 79394 164.8 16.0 42.3 84 2018 09 23 14 23 45 49.419 +14 02 31.40 81157 165.6 16.0 41.9 85 2018 09 23 15 23 57 19.539 +14 15 45.30 82337 165.8 16.0 40.8 85 2018 09 23 16 00 08 35.986 +14 26 40.11 82947 165.6 16.0 39.1 85 2018 09 23 17 00 19 48.033 +14 35 28.70 82995 164.8 16.1 36.8 85 2018 09 23 18 00 31 04.613 +14 42 17.26 82482 163.7 16.1 34.0 85 2018 09 23 19 00 42 34.965 +14 47 05.74 81401 162.2 16.1 30.5 85 2018 09 23 20 00 54 29.338 +14 49 47.34 79740 160.4 16.1 26.2 85 2018 09 23 21 01 06 59.882 +14 50 06.96 77477 158.3 16.1 21.0 84 2018 09 23 22 01 20 21.923 +14 47 38.03 74585 155.8 16.1 14.4 81 2018 09 23 23 01 34 55.976 +14 41 36.47 71022 152.9 16.1 6.45 66 2018 09 24 00 01 51 11.195 +14 30 49.20 66731 149.6 16.1 6.19 124 2018 09 24 01 02 09 51.803 +14 13 10.92 61639 145.6 16.0 20.8 104 2018 09 24 02 02 32 10.237 +13 44 53.01 55639 140.6 15.9 42.8 101 2018 09 24 03 03 00 17.442 +12 58 16.77 48585 134.3 15.8 77.9 100 2018 09 24 04 03 38 45.195 +11 35 41.93 40262 125.3 15.7 142 101 2018 09 24 05 04 39 12.325 +08 46 14.84 30380 110.8 15.5 288 103 2018 09 24 06 06 45 17.176 +01 04 22.90 18864 79.5 15.7 797 105 2018 09 24 07 13 26 57.415 -14 46 04.82 11949 25.2 20?? 1845 88 2018 09 24 08 18 37 38.226 -01 34 17.55 21901 98.5 15.2 421 75 2018 09 24 09 20 16 29.733 +04 52 47.65 33070 123.1 15.3 116 74 2018 09 24 10 21 08 07.032 +07 55 46.58 42525 135.6 15.5 28.9 72 2018 09 24 11 21 42 23.448 +09 43 20.88 50501 143.6 15.6 7.67 95