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 ]  
1370 Hella (1935 QG)
Classification: Main-belt Asteroid          SPK-ID: 2001370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703800482825679 3.7057e-08  
a 2.250275856952408 5.9113e-09 au
q 1.866873747795759 8.3363e-08 au
i 4.805417222513765 4.1218e-06 deg
node 306.0167845458672 4.1794e-05 deg
peri 3.826230026754512 4.3062e-05 deg
M 62.6773685500389 1.1522e-05 deg
tp 2458785.835454195799
(2019-Oct-29.33545420)
3.9188e-05 TDB
period 1232.9687457733
3.38
4.8584e-06
1.33e-08
d
yr
n .2919782040170152 1.1505e-09 deg/d
Q 2.633677966109055 6.9185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3038  
   data-arc span      31108 days (85.17 yr)  
   first obs. used      1935-08-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:19:39  

Additional Information
 Earth MOID = .852354 au 
 Jupiter MOID = 2.61752 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456458.5 (2013-Jun-15.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702434254065458 3.6902e-08  
q 1.867083793926884 8.3008e-08 au
tp 2456317.995565896215
(2013-Jan-25.49556590)
3.7398e-05 TDB
node 306.079136229908 4.1805e-05 deg
peri 3.454834121916937 4.3084e-05 deg
i 4.805228053981955 4.1196e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3038  
   data-arc span      31108 days (85.17 yr)  
   first obs. used      1935-08-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:19:39  

Additional Information
 Jupiter MOID = 2.61752 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.36176665435926E-15 -3.057763619687982E-15 3.543596745660234E-13 4.792125524332595E-15 8.908170287555969E-14 -3.553488077905642E-16
q -3.057763619687982E-15 6.890253949456369E-15 -7.816101816543329E-13 -1.064565025991362E-14 -1.964465435944343E-13 8.535561534756146E-16
tp 3.543596745660234E-13 -7.816101816543329E-13 1.398588710230007E-9 3.355931788364622E-13 3.997797404893225E-10 -1.465948927355219E-13
node 4.792125524332595E-15 -1.064565025991362E-14 3.355931788364622E-13 1.747677444959096E-9 -1.740926060143449E-9 3.320360319446689E-11
peri 8.908170287555969E-14 -1.964465435944343E-13 3.997797404893225E-10 -1.740926060143449E-9 1.856224028168539E-9 -3.313254521665028E-11
i -3.553488077905642E-16 8.535561534756146E-16 -1.465948927355219E-13 3.320360319446689E-11 -3.313254521665028E-11 1.697111453340883E-11

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 13.5   n/a MPO502166  

1370 Hella (1935 QG)          Discovered 1935-Aug-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ 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
2163-Sep-06 14:02 < 00:01 Juno 0.0440011247978676 0.043990893484879 0.0440113564825034 8.51407011690377 8.51407008442908 2511328.084585467 0.223507145755126 548.699121344609 36.9328566846514 21.6703538897939 66733.7396126062 T 37 CATAB v2.0f-lin.ifort 2020-Nov-13 04:19:47 2020-Nov-13 04:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 19:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin