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22307 (1990 SU4)
Classification: Main-belt Asteroid          SPK-ID: 2022307
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922668381110838 4.1363e-08  
a 2.302231497624262 7.0271e-09 au
q 1.8595887269763 9.4981e-08 au
i 4.080013075543846 3.8352e-06 deg
node 34.46947441992075 5.4736e-05 deg
peri 327.7623505889716 5.5345e-05 deg
M 224.796685600646 8.5619e-06 deg
tp 2459679.688901996644
(2022-Apr-10.18890200)
3.1127e-05 TDB
period 1275.915501666253
3.49
5.8417e-06
1.599e-08
d
yr
n .2821503457947381 1.2918e-09 deg/d
Q 2.744874268272224 8.3782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2444  
   data-arc span      13409 days (36.71 yr)  
   first obs. used      1983-09-03  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40738  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:04:10  

Additional Information
 Earth MOID = .857107 au 
 Jupiter MOID = 2.71182 au 
 T_jup = 3.562 
[ 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 14.69   n/a E2021B10  
diameter diameter 6.710 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 11.453 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:
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
geometric albedo albedo 0.043   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22307 (1990 SU4)          Discovered 1990-Sep-16 by Mrkos, A. at Klet
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 SU4 = 1983 RL9 = 2000 LY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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