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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
137671 (1999 XP35)
Classification: Amor [NEO]          SPK-ID: 2137671
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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841897890429298 7.824e-08  
a 1.434674780693709 3.9717e-09 au
q 1.170422335492523 1.1356e-07 au
i 21.1034466662358 1.0537e-05 deg
node 263.4643528077688 1.1298e-05 deg
peri 198.2697869051744 1.8636e-05 deg
M 188.6554964236337 2.0789e-05 deg
tp 2459695.242010866422
(2022-Apr-25.74201087)
3.7302e-05 TDB
period 627.6660276060702
1.72
2.6064e-06
7.136e-09
d
yr
n .57355342517588 2.3817e-09 deg/d
Q 1.698927225894895 4.7033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      16476 days (45.11 yr)  
   first obs. used      1976-05-02  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41785  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-22 06:23:43  

Additional Information
 Earth MOID = .194267 au 
 Jupiter MOID = 3.49838 au 
 T_jup = 4.590 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457357.5 (2015-Dec-01.0) TDB
Reference: JPL 59 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841863823507431 7.8213e-08  
q 1.170360654745452 1.1354e-07 au
tp 2457184.643070677724
(2015-Jun-11.14307068)
2.8872e-05 TDB
node 263.4806875477855 1.1298e-05 deg
peri 198.2362235170059 1.8642e-05 deg
i 21.10329332014916 1.0537e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      16476 days (45.11 yr)  
   first obs. used      1976-05-02  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41785  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-22 06:23:43  

Additional Information
 Jupiter MOID = 3.49838 au 
 T_jup = 4.590 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.117300771700794E-15 -8.877509431081473E-15 -8.631578821237027E-13 -1.136427897513618E-13 -2.749771733456097E-13 -2.202857873785196E-13
q -8.877509431081473E-15 1.289223424599462E-14 1.308666871881064E-12 1.661335413309705E-13 4.252874793688696E-13 3.214497598676067E-13
tp -8.631578821237027E-13 1.308666871881064E-12 8.335705898361493E-10 3.183174747810549E-11 4.279108507800955E-10 4.395753953490234E-11
node -1.136427897513618E-13 1.661335413309705E-13 3.183174747810549E-11 1.276479788202375E-10 -9.967161840549189E-11 1.051259543911748E-11
peri -2.749771733456097E-13 4.252874793688696E-13 4.279108507800955E-10 -9.967161840549189E-11 3.475295991895116E-10 1.298829891040112E-11
i -2.202857873785196E-13 3.214497598676067E-13 4.395753953490234E-11 1.051259543911748E-11 1.298829891040112E-11 1.110340759696163E-10

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 18.57   n/a MPO637683  

137671 (1999 XP35)          Discovered 1999-Dec-06 by LINEAR at Socorro
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 2021-Sep-24 02:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin