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26885 (1994 RN12)
Classification: Main-belt Asteroid          SPK-ID: 2026885
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1716026707998256 3.203e-08  
a 2.275569810421088 5.8991e-09 au
q 1.885075953361377 7.2818e-08 au
i 4.968605156737761 3.4944e-06 deg
node 157.4488922670527 3.461e-05 deg
peri 167.2759886745451 3.5605e-05 deg
M 186.412856862528 8.747e-06 deg
tp 2459605.072970873978
(2022-Jan-25.57297087)
3.1158e-05 TDB
period 1253.815608580341
3.43
4.8755e-06
1.335e-08
d
yr
n .2871235591074013 1.1165e-09 deg/d
Q 2.6660636674808 6.9114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1931  
   data-arc span      18057 days (49.44 yr)  
   first obs. used      1970-08-28  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49217  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:53:26  

Additional Information
 Earth MOID = .87354 au 
 Jupiter MOID = 2.65935 au 
 T_jup = 3.585 
[ 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 14.4   n/a MPO502358  
diameter diameter 3.308 km 0.799 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.370   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26885 (1994 RN12)          Discovered 1994-Sep-03 by Helin, E. F. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 RN12 = 1970 QP = 1991 VZ13 = 1998 XQ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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