285263 (1998 QE2)

1998QE2

Data

Number 285263
Provisional Designation 1998 QE2
Type Amor, NEO, PHA
Absolute Magnitude, H 17.2
Rotation period 4.749 h
Eccentricity 0.5716
Semi-major axis 2.4238 au
Inclination 12.859 °
Discovery Date 1998-08-19
Discovery By LINEAR
Discovery Means Lincoln Lab's ETS

Radar Experiments

Doppler-Only (Continuous Wave) Echo Power Spectra

Delay-Doppler Images

Animations


2013-06-11, 1998QE2.2013Jun11.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-11 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.32.

Observation Date: 2013-06-11 (03:55:15-03:58:52)

Resolution: 0.2 Hz

Polarization Ratio: 0.32

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-10, 1998QE2.2013Jun10.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-10 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.21.

Observation Date: 2013-06-10 (04:15:03-04:16:05)

Resolution: 0.2 Hz

Polarization Ratio: 0.21

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-09, 1998QE2.2013Jun08.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-9 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.25.

Observation Date: 2013-06-09 (03:48:12-03:53:29)

Resolution: 0.2 Hz

Polarization Ratio: 0.25

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-08, 1998QE2.2013Jun07.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-8 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.22.

Observation Date: 2013-06-08 (03:45:48-03:50:40)

Resolution: 0.2 Hz

Polarization Ratio: 0.22

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-07, 1998QE2.2013Jun06.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-7 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.18.

Observation Date: 2013-06-07 (03:43:03-03:47:35)

Resolution: 0.2 Hz

Polarization Ratio: 0.18

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-06, 1998QE2.2013Jun05.s0p2Hz.cw.png

Description

Echo power spectrum obtained on 2013-6-6 smoothed to a frequency resolution of 0.2 Hz. Power in the opposite circular (OC) polarization as transmitted is the solid line while the power in the same circular (SC) polarization as transmitted is the dashed line. The polariation ratio on this date was 0.36.

Observation Date: 2013-06-06 (03:46:23-03:56:01)

Resolution: 0.2 Hz

Polarization Ratio: 0.36

Download Options:

CSV file is the raw data corresponding to the viewed cw spectra. The CSV file consists of three columns. The first column is the doppler frequency (Hz), the second column is the echo power in the same sense (SC) and the third column is the echo power in the opposite sense (OC). Echo power is in units of standard deviation above the noise baseline.
2013-06-13, 1998QE2.p5.2013jun13.png

Description

Delay-Doppler radar image obtained on 2013-6-13. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-13 (05:46:48-05:59:43)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2013-06-12, 1998QE2.p5.2013jun12.png

Description

Delay-Doppler radar image obtained on 2013-6-12. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-12 (05:57:21-06:22:52)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2013-06-10, 1998QE2.p2.2013jun10.png

Description

Delay-Doppler radar image obtained on 2013-6-10. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-10 (04:28:38-05:31:17)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2013-06-09, 1998QE2.p2.2013jun09.png

Description

Delay-Doppler radar image obtained on 2013-6-9. The spatial resolution is 30 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-09 (04:01:04-05:43:16)

Resolution, Delay Axis: 30 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2013-06-06, 1998QE2.p05.2013jun06.png

Description

Delay-Doppler radar image obtained on 2013-6-6. The spatial resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-06 (03:58:11-04:17:44)

Resolution, Delay Axis: 7.5 m/px

Resolution, Doppler Axis: 0.05 Hz/px

Download Options:

2013-06-12, 1998QE2.p5.2013jun12.gif

Description

Sequence of delay-Doppler radar images obtained on 2013-6-12 from 05:00 to 06:00 AST. The resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-12 (05:57:21-06:22:52)

Download Options:

2013-06-10, 1998QE2.p2.2013jun10.gif

Description

Sequence of delay-Doppler radar images obtained on 2013-6-10 from 04:00 to 05:00 AST. The resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-10 (04:28:38-05:31:17)

Download Options:

2013-06-09, 1998QE2.p2.2013jun09.gif

Description

Sequence of delay-Doppler radar images obtained on 2013-6-9 from 04:00 to 05:00 AST. The resolution is 30 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-09 (04:01:04-05:43:16)

Download Options:

2013-06-06, 1998QE2.p05.2013jun06.gif

Description

Sequence of delay-Doppler radar images obtained on 2013-6-6 from 03:00 to 04:00 AST. The resolution is 7.5 m per pixel vertically along the delay axis and 0.05 Hz per pixel horizontally along the Doppler axis.

Observation Date: 2013-06-06 (03:58:11-04:17:44)

Download Options:

Additional Information


  • NASA Jet Propulsion Laboratory Small-Body Database entry

 

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