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22702 (1998 RO40)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022702
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06159337937992484 3.6035e-08  
a 3.200831989267326 2.1999e-08 au
q 3.003681930220984 1.1944e-07 au
i 5.435772972279856 3.9065e-06 deg
node 75.08572933496225 4.2954e-05 deg
peri 263.64824886479 5.4951e-05 deg
M 334.3422716667687 3.6248e-05 deg
tp 2459349.576245578311
(2021-May-15.07624558)
0.00021119 TDB
period 2091.667964957095
5.73
2.1564e-05
5.904e-08
d
yr
n .1721114469558674 1.7744e-09 deg/d
Q 3.397982048313668 2.3354e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1308  
   data-arc span      23832 days (65.25 yr)  
   first obs. used      1955-03-25  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:10:03  

Additional Information
 Earth MOID = 1.99914 au 
 Jupiter MOID = 1.86641 au 
 T_jup = 3.184 
[ 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 13.59   n/a E2021B10  
diameter diameter 12.421 km 1.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.046   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22702 (1998 RO40)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RO40 = 1999 VA8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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