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227944 (2007 GW38)
Classification: Main-belt Asteroid          SPK-ID: 2227944
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04174765360781738 6.6919e-08  
a 2.576470337300595 2.4381e-08 au
q 2.468908746128153 1.7398e-07 au
i 2.560341833832812 6.7699e-06 deg
node 69.62355435578907 0.0001551 deg
peri 112.4673241026597 0.00017376 deg
M 135.008864379547 8.0848e-05 deg
tp 2458634.005196269336
(2019-May-30.50519627)
0.00033721 TDB
period 1510.553623869562
4.14
2.1442e-05
5.87e-08
d
yr
n .2383232176013676 3.3829e-09 deg/d
Q 2.684031928473036 2.5399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      9642 days (26.40 yr)  
   first obs. used      1992-10-03  
   last obs. used      2019-02-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58609  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:45  

Additional Information
 Earth MOID = 1.47119 au 
 Jupiter MOID = 2.27171 au 
 T_jup = 3.424 
[ 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 17.0   n/a MPO470436  

227944 (2007 GW38)          Discovered 2007-Apr-14 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2188-Jun-08 17:38 00:13 Amphi 0.0491513380202197 0.0490934371610149 0.0492092858802797 2.92193059005659 2.92193055002823 2520370.234446651 12.8398383280269 3751.50034852704 93.6377424484273 39.7152359178765 50149.4489294748 T 12 CATAB v2.0f-lin.ifort 2021-Apr-14 00:41:46 2021-Apr-14 00:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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