Observation information
- date-obs: 2018-02-28
- time-obs: 23:09:03.642600000
- date-end: 2018-03-01
- time-end: 22:46:43.654400000
- obs_id: C03_023T01_9000001930
- exposure: 43245.5524595
- sourceid: Crab_SSM1
- observer: ramadevi
- ra_pnt: 216.8708
- dec_pnt: -12.5862
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C03_023T01_9000001930cztM0_level2_bc.evt
| modeM0/AS1C03_023T01_9000001930cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,171,288,960 | 882,959,040 |
Size | 3.0 GB
| 842.1 MB
|
Events in quadrant A | 17,417,807 | 5,534,738 |
Events in quadrant B | 28,925,742 | 5,376,425 |
Events in quadrant C | 14,232,619 | 5,656,733 |
Events in quadrant D | 30,593,028 | 5,271,568 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 159101 | 0 |
B | 0 | 232487 | 0 |
C | 0 | 146809 | 0 |
D | 0 | 207221 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 115 | 0 |
B | 0 | 115 | 0 |
C | 0 | 115 | 0 |
D | 0 | 115 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1456 | 0 |
B | 0 | 1456 | 0 |
C | 0 | 1456 | 0 |
D | 0 | 1456 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 71488 | 1672 | 2.338854% |
B | 71489 | 12676 | 17.731399% |
C | 71489 | 498 | 0.696611% |
D | 71489 | 4414 | 6.174376% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 85061 | 71492 | 128 | 128 | 0.15% | 0.18% |  |
B | 85061 | 71415 | 549 | 549 | 0.65% | 0.77% |  |
C | 85061 | 71493 | 3 | 3 | 0.00% | 0.00% |  |
D | 85061 | 71487 | 635 | 635 | 0.75% | 0.89% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 15 | 223 | 1460562 | 1865.17 | 3588 | 3512 | 781.2 |
A | 12 | 189 | 1086366 | 1386.17 | 3588 | 3512 | 781.2 |
A | 15 | 239 | 562105 | 715.06 | 3588 | 3512 | 781.2 |
B | 0 | 85 | 11200594 | 18023.69 | 3283 | 3189 | 621.3 |
B | 4 | 239 | 3208696 | 5159.68 | 3283 | 3189 | 621.3 |
B | 3 | 64 | 910501 | 1460.44 | 3283 | 3189 | 621.3 |
C | 14 | 234 | 61074 | 73.32 | 3592 | 3544 | 784.7 |
C | 0 | 207 | 29087 | 32.55 | 3592 | 3544 | 784.7 |
C | 8 | 128 | 28653 | 32.0 | 3592 | 3544 | 784.7 |
D | 1 | 52 | 6246000 | 7731.0 | 3514 | 3388 | 807.5 |
D | 13 | 122 | 4898513 | 6062.24 | 3514 | 3388 | 807.5 |
D | 10 | 157 | 4051499 | 5013.28 | 3514 | 3388 | 807.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |