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4385 Elsasser (2534 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2004385
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843492314874018 2.4187e-08  
a 3.164431453796498 1.3582e-08 au
q 2.581070947194552 7.9197e-08 au
i .5762496700880659 2.4206e-06 deg
node 61.04678808066191 0.0001153 deg
peri 310.7518620294125 0.00011237 deg
M 217.8800184824059 7.3279e-06 deg
tp 2460012.198245870219
(2023-Mar-08.69824587)
4.495e-05 TDB
period 2056.089266216967
5.63
1.3237e-05
3.624e-08
d
yr
n .1750896743225405 1.1272e-09 deg/d
Q 3.747791960398444 1.6085e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2256  
   data-arc span      22094 days (60.49 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:36:03  

Additional Information
 Earth MOID = 1.57981 au 
 Jupiter MOID = 1.71764 au 
 T_jup = 3.177 
[ 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 13.0   n/a MPO435740  
diameter diameter 10.813 km 0.759 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.57 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.166   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4385 Elsasser (2534 P-L)          Discovered 1960-Sep-24 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 2534 P-L = 1977 QE2 = 1977 RZ2 = 1987 KA5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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