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 ]  
136795 (1997 BQ)
Classification: Apollo [NEO, PHA]          SPK-ID: 2136795
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 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4786097721361114 3.1978e-08  
a 1.747208814265524 4.3818e-09 au
q .9109776017956959 5.7232e-08 au
i 10.99172312228909 7.3009e-06 deg
node 50.19110280709075 2.7168e-05 deg
peri 147.4553544185893 2.7149e-05 deg
M 17.87248474082164 2.8879e-06 deg
tp 2458958.620828734485
(2020-Apr-19.12082873)
6.8325e-06 TDB
period 843.5593525029026
2.31
3.1733e-06
8.688e-09
d
yr
n .4267630948929125 1.6054e-09 deg/d
Q 2.583440026735351 6.479e-09 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      8576 days (23.48 yr)  
   first obs. used      1997-01-16  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-02 06:48:19  

Additional Information
 Earth MOID = .0358257 au 
 Jupiter MOID = 2.38908 au 
 T_jup = 3.977 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456002.5 (2012-Mar-16.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4787418619770605 3.2711e-08  
q .9098541122850208 5.6858e-08 au
tp 2455588.716553939476
(2011-Jan-27.21655394)
7.5107e-06 TDB
node 50.23212202851305 2.7175e-05 deg
peri 147.3860419798746 2.7183e-05 deg
i 11.00807811029209 7.2931e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      338  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      8576 days (23.48 yr)  
   first obs. used      1997-01-16  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39686  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-02 06:48:19  

Additional Information
 Jupiter MOID = 2.38908 au 
 T_jup = 3.977 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.069984810864583E-15 -1.859813739663372E-15 -7.139608844565821E-15 7.249023428878261E-14 -2.485498742274845E-14 -1.409258487357978E-14
q -1.859813739663372E-15 3.23284814845108E-15 1.136310914118178E-14 -1.238784172518161E-13 4.096143913319648E-14 2.47109080669023E-14
tp -7.139608844565821E-15 1.136310914118178E-14 5.641118741449007E-11 3.13839529072019E-11 3.908040576184926E-11 7.042836498804391E-12
node 7.249023428878261E-14 -1.238784172518161E-13 3.13839529072019E-11 7.384813052582306E-10 -6.885610968820453E-10 2.135103366177052E-11
peri -2.485498742274845E-14 4.096143913319648E-14 3.908040576184926E-11 -6.885610968820453E-10 7.389116579232432E-10 -1.117649834973461E-11
i -1.409258487357978E-14 2.47109080669023E-14 7.042836498804391E-12 2.135103366177052E-11 -1.117649834973461E-11 5.31898309713932E-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 18.0   n/a MPO502856  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

136795 (1997 BQ)          Discovered 1997-Jan-16 by Hasegawa, T. at Kiso
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
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-27 07:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin