Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
30638 (6237 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030638
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02439367164235709 3.8404e-08  
a 2.758286964889753 1.415e-08 au
q 2.691002218372839 1.0809e-07 au
i 4.982814053897309 5.2945e-06 deg
node 212.4476329631137 4.1687e-05 deg
peri 276.8834836264575 0.00011548 deg
M 329.0143215481281 0.00010885 deg
tp 2459540.517778119215
(2021-Nov-22.01777812)
0.00050612 TDB
period 1673.237531443669
4.58
1.2875e-05
3.525e-08
d
yr
n .2151517601266045 1.6556e-09 deg/d
Q 2.825571711406668 1.4495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      22028 days (60.31 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:47  

Additional Information
 Earth MOID = 1.71139 au 
 Jupiter MOID = 2.17227 au 
 T_jup = 3.337 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457343.5 (2015-Nov-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02208288176755236 3.8095e-08  
q 2.697749413121678 1.07e-07 au
tp 2457860.148636737544
(2017-Apr-16.64863674)
0.00056067 TDB
node 212.4952450318542 4.1629e-05 deg
peri 275.3533058511185 0.00012695 deg
i 4.984751022335061 5.3002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      22028 days (60.31 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:47  

Additional Information
 Jupiter MOID = 2.17227 au 
 T_jup = 3.337 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.451257523023397E-15 -4.041613804230255E-15 3.350371385503841E-12 8.94863430646683E-16 7.876870275850048E-13 1.178922723082704E-15
q -4.041613804230255E-15 1.144820142445995E-14 -7.91540834991067E-12 -3.499619498112648E-15 -1.903754019408092E-12 -3.110352842578324E-15
tp 3.350371385503841E-12 -7.91540834991067E-12 3.143542974621912E-7 -2.470973480463245E-11 6.724017779350036E-8 1.30753795754652E-11
node 8.94863430646683E-16 -3.499619498112648E-15 -2.470973480463245E-11 1.732953220576324E-9 -1.731407771164299E-9 -5.184498774376754E-11
peri 7.876870275850048E-13 -1.903754019408092E-12 6.724017779350036E-8 -1.731407771164299E-9 1.611521107018297E-8 5.44882375946028E-11
i 1.178922723082704E-15 -3.110352842578324E-15 1.30753795754652E-11 -5.184498774376754E-11 5.44882375946028E-11 2.809229027437472E-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 15.30   n/a MPCxxxxx  
diameter diameter 4.862 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30638 (6237 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 6237 P-L = 1997 UM6 = 2000 KB6 = 2011 VH24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-27 13:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin