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21046 (1990 SH3)
Classification: Main-belt Asteroid          SPK-ID: 2021046
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2738177610606198 3.1929e-08  
a 3.054647650861637 1.4096e-08 au
q 2.218230870273622 9.9016e-08 au
i 5.569493859820406 3.8443e-06 deg
node 85.36165643498798 4.2626e-05 deg
peri 255.1357646514164 4.3277e-05 deg
M 278.1849167887948 8.8308e-06 deg
tp 2459839.670645270396
(2022-Sep-17.17064527)
4.9282e-05 TDB
period 1950.024690257751
5.34
1.3498e-05
3.696e-08
d
yr
n .1846130471057861 1.2778e-09 deg/d
Q 3.891064431449653 1.7955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1738  
   data-arc span      15350 days (42.03 yr)  
   first obs. used      1979-07-20  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48186  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:47:48  

Additional Information
 Earth MOID = 1.21696 au 
 Jupiter MOID = 1.55471 au 
 T_jup = 3.170 
[ show covariance matrix ]

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 13.85   n/a MPO636380  
diameter diameter 8.642 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

21046 (1990 SH3)          Discovered 1990-Sep-18 by Holt, H. E. at Palomar
Reference: 20010208/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
1945-Apr-02 15:16 00:02 Jupiter 1.66973303920796 1.66973197252653 1.66973410589153 0.663872661315179 n/a 2431548.136245710 1.81078035340129 119.938758339447 25.4575470503526 66.5172164444103 9034712.04517478 F 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
1954-Sep-07 05:18 00:02 Jupiter 1.80524523354681 1.80524416560681 1.80524630148569 2.00287418485635 1.75302692410832 2434992.720891062 1.568254376455 65.9870962161102 33.0059360929172 72.1779182067367 1124148.85321924 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2003-Sep-28 11:09 < 00:01 Jupiter 1.53869595425144 1.53869560372577 1.53869630477741 0.543987449887402 n/a 2452910.964710110 0.375497108466873 53.5229352085608 12.8206835335703 76.7833259979646 17500728.0459554 F 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2052-Oct-23 07:18 < 00:01 Jupiter 1.86630431666398 1.86630368960822 1.86630494371932 1.4493074986919 1.09215013046545 2470833.804394616 0.840063350137932 191.487373737535 169.964803343702 -38.5794775699481 1207885.73669041 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2062-Mar-27 07:50 00:01 Jupiter 1.63067584379167 1.63067531115616 1.63067637642856 1.10118400249274 0.416827930291348 2474275.826479889 1.08169547633087 3161.84896161669 263.033679193419 3.1780962415666 1372343.04447674 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2111-Apr-08 09:02 00:02 Jupiter 1.61465815995159 1.61465729453199 1.6146590253754 0.525457566774792 n/a 2492183.876199813 2.19300869275334 159.028723426496 22.8623772844461 76.5514147785025 10278590.8556108 F 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2120-Sep-08 05:28 00:02 Jupiter 1.88767804962045 1.8876765665715 1.88767953266758 2.3407114305813 2.14044559832764 2495624.727570888 2.44084207812877 46.6635298493798 11.8148297944074 -85.6277039818057 714902.422225635 T 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47
2169-Oct-09 10:12 00:03 Jupiter 1.54731709745289 1.5473166414718 1.54731755343557 0.507790401038678 n/a 2513552.924897187 3.47050957526224 151.924969051462 19.4019111717335 -85.4868781652959 11890459.7303845 F 33 CATAB v2.0g-lin.ifort 2021-Aug-25 21:47:53 2021-Aug-25 21:47

Alternate Designations
 1990 SH3 = 1979 OS13 = 1979 PH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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