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20907 (2762 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020907
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2410333217651432 4.1272e-08  
a 3.145805048589434 1.8781e-08 au
q 2.387561208102364 1.3201e-07 au
i 2.728165348946681 4.3614e-06 deg
node 81.6653889474199 9.2408e-05 deg
peri 297.229959544364 9.2783e-05 deg
M 259.8369482756412 1.1533e-05 deg
tp 2459767.523660994848
(2022-Jul-07.02366099)
6.9074e-05 TDB
period 2037.962246995945
5.58
1.8251e-05
4.997e-08
d
yr
n .1766470407048302 1.5819e-09 deg/d
Q 3.904048889076503 2.3308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      21877 days (59.90 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:34:18  

Additional Information
 Earth MOID = 1.39008 au 
 Jupiter MOID = 1.56055 au 
 T_jup = 3.162 
[ 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 14.61   n/a E2021B10  
diameter diameter 6.709 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20907 (2762 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2762 P-L = 1999 RQ49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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