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18916 (2000 OG44)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018916
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5836099559410203 3.2439e-08  
a 3.855026284059235 1.2905e-08 au
q 1.60519456426795 1.2415e-07 au
i 7.396081219227792 8.2304e-06 deg
node 301.3713539490253 5.0739e-05 deg
peri 98.87808498304496 5.0979e-05 deg
M 257.0081882075659 5.0467e-06 deg
tp 2460187.432897159129
(2023-Aug-30.93289716)
4.1735e-05 TDB
period 2764.645441436961
7.57
1.3883e-05
3.801e-08
d
yr
n .1302156126801147 6.5387e-10 deg/d
Q 6.10485800385052 2.0437e-08 au
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      24032 days (65.80 yr)  
   first obs. used      1954-09-06  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:42:29  

Additional Information
 Earth MOID = .633754 au 
 Jupiter MOID = .615484 au 
 T_jup = 2.736 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456582.5 (2013-Oct-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5860933926848331 3.258e-08  
q 1.592410993246408 1.2521e-07 au
tp 2457426.422872060345
(2016-Feb-07.92287206)
3.2852e-05 TDB
node 301.6943895483449 5.0617e-05 deg
peri 98.45555032635298 5.0805e-05 deg
i 7.415531177272443 8.2606e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      631  
   data-arc span      24032 days (65.80 yr)  
   first obs. used      1954-09-06  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:42:29  

Additional Information
 Jupiter MOID = .615484 au 
 T_jup = 2.736 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.061472259362668E-15 -4.076334700219575E-15 -2.785484982955604E-13 -9.0978451804693E-14 7.489565591071037E-14 -4.072260875914997E-14
q -4.076334700219575E-15 1.567872891331322E-14 1.144519295288834E-12 4.351509305467207E-13 -3.640025239147501E-13 1.807084535233037E-13
tp -2.785484982955604E-13 1.144519295288834E-12 1.079238307377604E-9 4.865606374029073E-11 1.419671700921919E-10 5.911571017024868E-11
node -9.0978451804693E-14 4.351509305467207E-13 4.865606374029073E-11 2.562038109715739E-9 -2.541265764050484E-9 1.941036725740046E-10
peri 7.489565591071037E-14 -3.640025239147501E-13 1.419671700921919E-10 -2.541265764050484E-9 2.581167284898261E-9 -1.846077280608463E-10
i -4.072260875914997E-14 1.807084535233037E-13 5.911571017024868E-11 1.941036725740046E-10 -1.846077280608463E-10 6.823711522525089E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.43   n/a E2021B10  
diameter diameter 5.6 km 0.6 Fernandez et al. (2005) Astron.J. 130:308-318  
geometric albedo albedo 0.111   0.024 Fernandez et al. (2005) Astron.J. 130:308-318  

18916 (2000 OG44)          Discovered 2000-Jul-30 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1910-Jul-21 18:02 00:01 Jupiter 0.490956040169475 0.490953970265875 0.490958110108769 6.2002833950088 5.91548913638532 2418874.251327555 1.14262204183517 482.345783419578 92.0255051559776 85.4422036935007 819656.301676709 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
1934-May-27 07:03 00:02 Jupiter 0.730938676549547 0.730934853143646 0.730942499957817 5.12088956442793 4.88936401330495 2427584.793651314 2.32207289580172 216.877272088155 154.327061411777 -39.1264991748169 726254.532271212 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
1959-Mar-15 12:54 00:03 Jupiter 0.979601448235748 0.979598799592032 0.979604096882582 4.84587105058096 4.66402675588533 2436643.037611428 2.84166381195509 166.58317378456 63.8864381541587 41.1837268569315 1646610.21811644 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
1983-Jul-07 02:27 < 00:01 Jupiter 0.616595777872291 0.616593314989237 0.616598240755449 5.97457480282942 5.74004601112755 2445522.602153217 0.657285321220395 123.692693059135 44.2876119037197 7.43334249838101 822587.897778729 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2006-Nov-15 00:45 < 00:01 Jupiter 1.93807256075513 1.93807070792508 1.93807441358529 10.9232469740525 10.8831630027478 2454054.531523594 0.277882579369412 105.84870528142 88.3879333403446 -63.6176326610018 2202748.60831425 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2040-Nov-11 12:04 < 00:01 Jupiter 0.901407861999645 0.901405967776104 0.901409756223237 7.21481705568344 7.08337862344166 2466470.002817709 0.442683365655119 95.5542668475453 63.2797791886034 -13.917781981528 1260250.55619727 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2064-Aug-07 07:43 < 00:01 Jupiter 0.80549227782891 0.805489277152299 0.805495278518067 5.56700165918092 5.3747920730493 2475139.821474585 0.808315053888719 223.369107334371 34.6734475298417 -47.1540644415995 3251664.1726814 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2088-Apr-25 07:45 00:04 Jupiter 0.827290321364512 0.827283862558393 0.827296780426593 5.42381696966795 5.2316428910957 2483801.822860962 3.83066655952475 810.21865129274 33.6276850656336 -65.324910316462 4780706.33750363 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2111-Nov-26 13:11 00:01 Jupiter 0.825532570975451 0.825522009765219 0.825543137280965 6.29246554482446 6.12723913496971 2492416.049326290 1.21077007036639 3325.47452261854 30.0257026465265 81.9008267806218 4933033.11511983 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42
2173-Apr-12 08:09 00:22 Jupiter 0.605877144045843 0.605635992135888 0.606118294307183 7.65057336700224 7.46560460828441 2514833.839530738 21.5760070985124 11916.5094863454 86.6434038014188 -2.28397413757782 29377.7887786433 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 02:42:31 2021-Apr-13 02:42

Alternate Designations
 2000 OG44 = 1977 SD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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