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1912 Anubis (6534 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2001912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09226226276541231 9.1069e-09  
a 2.903537853007369 9.0215e-09 au
q 2.635650880663882 2.6753e-08 au
i 3.159002558161598 6.2605e-07 deg
node 76.19123981657486 6.7828e-06 deg
peri 318.9405357214127 1.588e-05 deg
M 31.84239634136677 1.1784e-05 deg
tp 2459040.657262721409
(2020-Jul-10.15726272)
5.9224e-05 TDB
period 1807.131121772314
4.95
8.4224e-06
2.306e-08
d
yr
n .1992107798170926 9.2845e-10 deg/d
Q 3.171424825350857 9.8539e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3441  
   data-arc span      28515 days (78.07 yr)  
   first obs. used      1943-02-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43693  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:50:51  

Additional Information
 Earth MOID = 1.64229 au 
 Jupiter MOID = 2.20975 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456983.5 (2014-Nov-22.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09312351088332112 8.6027e-09  
q 2.633537525920514 2.4779e-08 au
tp 2457219.236314977325
(2015-Jul-15.73631498)
5.978e-05 TDB
node 76.25966640665621 6.7964e-06 deg
peri 316.3255385931166 1.5777e-05 deg
i 3.157356078845583 6.2515e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3441  
   data-arc span      28515 days (78.07 yr)  
   first obs. used      1943-02-27  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43693  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:50:51  

Additional Information
 Jupiter MOID = 2.20975 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.40058463430995E-17 -2.017973436695113E-16 1.938104804909889E-13 -1.665283734134793E-15 4.514777306351866E-14 1.596649585807821E-15
q -2.017973436695113E-16 6.140037737898713E-16 -6.570307580494081E-13 5.041056773575775E-15 -1.528703175785549E-13 -4.387681015149545E-15
tp 1.938104804909889E-13 -6.570307580494081E-13 3.573683431710094E-9 -6.024876343175413E-11 8.640223099556856E-10 -1.30753682140246E-11
node -1.665283734134793E-15 5.041056773575775E-15 -6.024876343175413E-11 4.61911226554666E-11 -5.693899758589264E-11 -1.089588002384773E-12
peri 4.514777306351866E-14 -1.528703175785549E-13 8.640223099556856E-10 -5.693899758589264E-11 2.489288214201781E-10 -1.929328845012484E-12
i 1.596649585807821E-15 -4.387681015149545E-15 -1.30753682140246E-11 -1.089588002384773E-12 -1.929328845012484E-12 3.908158794442401E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.81   n/a E2021B10  
diameter diameter 10.407 km 0.952 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 4.626 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.382   0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1912 Anubis           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Leiden, on Palomar Schmidt plates taken by T. Gehrels.
Named for the Egyptian god who had the shape of a jackal and was the protector of the dead.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5013Last Updated: 2006-03-21

Alternate Designations
 6534 P-L = 1938 DJ2 = 1943 DD = 1968 HQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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