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3778 Regge (1984 HK1)
Classification: Main-belt Asteroid          SPK-ID: 2003778
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0403245978276719 2.6156e-08  
a 2.870809954858692 1.1063e-08 au
q 2.755045697989338 7.9079e-08 au
i 1.368740730607073 8.1953e-07 deg
node 339.1635608861812 1.9161e-05 deg
peri 101.8233932610562 3.7271e-05 deg
M 352.4831743103218 3.3215e-05 deg
tp 2459433.596853139999
(2021-Aug-07.09685314)
0.00016391 TDB
period 1776.663139699791
4.86
1.027e-05
2.812e-08
d
yr
n .2026270438980517 1.1713e-09 deg/d
Q 2.986574211728045 1.1509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2706  
   data-arc span      24935 days (68.27 yr)  
   first obs. used      1952-12-11  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43349  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:08:27  

Additional Information
 Earth MOID = 1.77104 au 
 Jupiter MOID = 2.10232 au 
 T_jup = 3.296 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.63   n/a E2021B10  
diameter diameter 8.739 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.192   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3778 Regge (1984 HK1)          Discovered 1984-Apr-26 by Ferreri, W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 HK1 = 1976 SX1 = 1981 UC11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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