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48738 (1997 ER16)
Classification: Main-belt Asteroid          SPK-ID: 2048738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1914669935288218 4.9452e-08  
a 2.420042192589969 9.9976e-09 au
q 1.95668398976187 1.2013e-07 au
i .8826831729113049 5.7343e-06 deg
node 2.279406243793827 0.0002493 deg
peri 331.8816963197111 0.00024957 deg
M 277.8577839877341 1.2036e-05 deg
tp 2459314.259401422627
(2021-Apr-09.75940142)
4.6391e-05 TDB
period 1375.095413730728
3.76
8.5211e-06
2.333e-08
d
yr
n .2618000150428073 1.6223e-09 deg/d
Q 2.883400395418068 1.1912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:13:00  

Additional Information
 Earth MOID = .946708 au 
 Jupiter MOID = 2.48473 au 
 T_jup = 3.489 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456734.5 (2014-Mar-18.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .190637193892585 4.9191e-08  
q 1.958724407562995 1.1927e-07 au
tp 2456560.408812329153
(2013-Sep-24.90881233)
4.5601e-05 TDB
node 2.290968458838923 0.00024905 deg
peri 331.2805824382664 0.00024933 deg
i .8847043399172305 5.7261e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:13:00  

Additional Information
 Jupiter MOID = 2.48473 au 
 T_jup = 3.489 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.419800568511385E-15 -5.853323761697493E-15 9.65039133856126E-13 1.853920791681779E-15 2.204824868715453E-13 -3.111547100456782E-16
q -5.853323761697493E-15 1.422465250815024E-14 -2.374755315900793E-12 -6.273051744062125E-15 -5.403626300718688E-13 7.799142922129522E-16
tp 9.65039133856126E-13 -2.374755315900793E-12 2.079440718790725E-9 -5.848787306843455E-13 5.437615338436922E-10 -3.890530361642465E-13
node 1.853920791681779E-15 -6.273051744062125E-15 -5.848787306843455E-13 6.202603873689044E-8 -6.201823078024298E-8 5.501283298036068E-11
peri 2.204824868715453E-13 -5.403626300718688E-13 5.437615338436922E-10 -6.201823078024298E-8 6.216340604363865E-8 -5.510200362325148E-11
i -3.111547100456782E-16 7.799142922129522E-16 -3.890530361642465E-13 5.501283298036068E-11 -5.510200362325148E-11 3.278825153227182E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO436124  

48738 (1997 ER16)          Discovered 1997-Mar-05 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 ER16 = 1997 GS26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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