"Pseudo-MPEC" for X84990
Created 2025 Jan 22 0:31:15 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
X84990 C2025 01 01.44214523 34 20.39 +12 39 21.4 FixDup 20.9 RVNEOCPD29
X84990 * C2025 01 01.44214523 34 20.39 +12 39 21.4 Duplicate20.9 RVNEOCPD29
X84990 C2025 01 01.45628623 34 17.27 +12 39 53.7 ~1212 20.4 RVNEOCPD29
X84990 C2025 01 01.47042723 34 13.94 +12 40 28.1 ~1212 20.2 RVNEOCPD29
Station data:
(D29) Purple Mountain Observatory, XuYi Station (N32.734363 E118.463900)
China. Observers H. B. Zhao, B. Li, G. Zhaori, R. Q. Hong, L. F. Hu.
Measurers H. B. Zhao, B. Li. H. Lu, G. Zhaori. 1.04-m f/1.8 Schmidt + CCD.
Orbital elements: X84990
Perihelion 2025 Feb 18.94474 +/- 21.1 TT = 22:40:25 (JD 2460725.44474)
Epoch 2025 Jan 1.0 TT = JDT 2460676.5 Earth MOID: 0.0388 AutoNEOCP
M 331.14415990 +/- 50 (J2000 ecliptic)
n 0.58955959 +/- 0.576 Peri. 89.92192 +/- 38
a 1.40858883 +/- 0.917 Node 70.24276 +/- 22
e 0.4790189 +/- 0.204 Incl. 17.68205 +/- 43
P 1.672/610.614d H 20.76 G 0.15 U 12.4 SR
q 0.73384804 +/- 0.25 Q 2.08332961 +/- 2.25
From 4 observations 2025 Jan. 1 (40.7 min); mean residual 0".58
Residuals in arcseconds: 250101 D29 .29- .20+ 250101 D29 1.2+ .78- 250101 D29 .29- .20+ 250101 D29 .58- .39+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2025 01 22 01 22 06 39.120 +23 26 11.97 .30521 .82600 50.8 22.1 28d 94 2025 01 22 02 22 06 26.500 +23 26 52.52 .30525 .82575 50.8 22.1 28d 94 2025 01 22 03 22 06 13.873 +23 27 32.85 .30529 .82551 50.7 22.1 28d 94 2025 01 22 04 22 06 01.239 +23 28 12.93 .30533 .82526 50.7 22.1 28d 94 2025 01 22 05 22 05 48.600 +23 28 52.79 .30537 .82501 50.6 22.1 28d 94 2025 01 22 06 22 05 35.954 +23 29 32.41 .30541 .82476 50.6 22.1 28d 94 2025 01 22 07 22 05 23.301 +23 30 11.79 .30546 .82451 50.5 22.1 28d 94 2025 01 22 08 22 05 10.643 +23 30 50.94 .30550 .82427 50.5 22.1 28d 94 2025 01 22 09 22 04 57.978 +23 31 29.85 .30554 .82402 50.4 22.1 28d 94 2025 01 22 10 22 04 45.307 +23 32 08.52 .30558 .82377 50.4 22.1 28d 94 2025 01 22 11 22 04 32.629 +23 32 46.96 .30563 .82353 50.3 22.1 28d 94 2025 01 22 12 22 04 19.946 +23 33 25.16 .30567 .82328 50.3 22.1 28d 94 2025 01 22 13 22 04 07.256 +23 34 03.12 .30571 .82303 50.3 22.1 28d 94 2025 01 22 14 22 03 54.561 +23 34 40.84 .30575 .82279 50.2 22.1 28d 94 2025 01 22 15 22 03 41.859 +23 35 18.32 .30580 .82254 50.2 22.1 28d 94 2025 01 22 16 22 03 29.151 +23 35 55.56 .30584 .82230 50.1 22.1 28d 94 2025 01 22 17 22 03 16.438 +23 36 32.57 .30589 .82205 50.1 22.1 28d 94 2025 01 22 18 22 03 03.718 +23 37 09.33 .30593 .82181 50.0 22.1 28d 94 2025 01 22 19 22 02 50.993 +23 37 45.85 .30597 .82156 50.0 22.1 28d 94 2025 01 22 20 22 02 38.262 +23 38 22.13 .30602 .82132 49.9 22.2 28d 94 2025 01 22 21 22 02 25.524 +23 38 58.16 .30606 .82107 49.9 22.2 28d 94 2025 01 22 22 22 02 12.782 +23 39 33.96 .30611 .82083 49.8 22.2 28d 94 2025 01 22 23 22 02 00.033 +23 40 09.51 .30615 .82059 49.8 22.2 28d 94 2025 01 23 00 22 01 47.279 +23 40 44.82 .30620 .82034 49.7 22.2 28d 94 2025 01 23 01 22 01 34.519 +23 41 19.88 .30624 .82010 49.7 22.2 28d 94 2025 01 23 02 22 01 21.754 +23 41 54.70 .30629 .81986 49.6 22.2 28d 94 2025 01 23 03 22 01 08.983 +23 42 29.28 .30633 .81961 49.6 22.2 28d 94 2025 01 23 04 22 00 56.206 +23 43 03.61 .30638 .81937 49.5 22.2 28d 94 2025 01 23 05 22 00 43.424 +23 43 37.69 .30643 .81913 49.5 22.2 29d 94 2025 01 23 06 22 00 30.637 +23 44 11.53 .30647 .81889 49.5 22.2 29d 94 2025 01 23 07 22 00 17.844 +23 44 45.13 .30652 .81864 49.4 22.2 29d 94 2025 01 23 08 22 00 05.046 +23 45 18.47 .30656 .81840 49.4 22.2 29d 94 2025 01 23 09 21 59 52.242 +23 45 51.57 .30661 .81816 49.3 22.2 29d 94 2025 01 23 10 21 59 39.433 +23 46 24.42 .30666 .81792 49.3 22.2 29d 94 2025 01 23 11 21 59 26.619 +23 46 57.03 .30671 .81768 49.2 22.2 29d 94 2025 01 23 12 21 59 13.800 +23 47 29.38 .30675 .81744 49.2 22.2 29d 94 2025 01 23 13 21 59 00.976 +23 48 01.49 .30680 .81720 49.1 22.2 29d 94 2025 01 23 14 21 58 48.146 +23 48 33.34 .30685 .81696 49.1 22.2 29d 94 2025 01 23 15 21 58 35.312 +23 49 04.95 .30690 .81672 49.0 22.2 29d 94 2025 01 23 16 21 58 22.473 +23 49 36.31 .30695 .81648 49.0 22.2 29d 94 2025 01 23 17 21 58 09.628 +23 50 07.41 .30699 .81624 48.9 22.2 29d 94 2025 01 23 18 21 57 56.779 +23 50 38.27 .30704 .81600 48.9 22.2 29d 94 2025 01 23 19 21 57 43.925 +23 51 08.87 .30709 .81576 48.9 22.2 29d 94 2025 01 23 20 21 57 31.065 +23 51 39.22 .30714 .81553 48.8 22.2 29d 94 2025 01 23 21 21 57 18.202 +23 52 09.32 .30719 .81529 48.8 22.2 29d 94 2025 01 23 22 21 57 05.333 +23 52 39.17 .30724 .81505 48.7 22.2 29d 94 2025 01 23 23 21 56 52.460 +23 53 08.76 .30729 .81481 48.7 22.2 29d 94 2025 01 24 00 21 56 39.582 +23 53 38.10 .30734 .81457 48.6 22.2 29d 94