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 ]  
169P/NEAT
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1001656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454412.5 (2007-Nov-08.0) TDB
Reference: JPL 125 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7668539919341593 1.5473e-08  
a 2.604338683991046 1.0618e-08 au
q .6071911678239575 3.8386e-08 au
i 11.30234048411195 5.7175e-06 deg
node 176.2126210196021 3.1278e-05 deg
peri 217.9790548253723 3.1458e-05 deg
M 183.2976921185222 1.0673e-06 deg
tp 2455166.001880797261
(2009-Nov-30.50188080)
8.1867e-06 TDB
period 1535.128093906735
4.20
9.388e-06
2.57e-08
d
yr
n .2345081178755832 1.4341e-09 deg/d
Q 4.601486200158135 1.876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1216  
   data-arc span      11390 days (31.18 yr)  
   first obs. used      1989-03-07  
   last obs. used      2020-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55406  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 23:13:47  

Additional Information
 Earth MOID = .142801 au 
 Jupiter MOID = .975059 au 
 T_jup = 2.888 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.9   0.9 125 2 parameter fit from 301 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a 125 autocmod 2.9b
rotation period rot_per 8.369 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2006) Minor Planet Bull. 33, 35-39.]

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2001.5   169P/2002 EX12       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-11 16:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin