Observation information
- date-obs: 2023-08-14
- time-obs: 13:46:48.421100000
- date-end: 2023-08-14
- time-end: 16:00:20.414400000
- obs_id: A12_061T07_9000005818
- exposure: 5009.71737361
- sourceid: NGC1808
- observer: jyoti
- ra_pnt: 76.92641
- dec_pnt: -37.51306
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_061T07_9000005818_42596cztM0_level2.fits
| modeM0/AS1A12_061T07_9000005818_42596cztM0_level2_quad_clean.evt
|
Size (bytes) | 413,412,480 | 92,969,280 |
Size | 394.3 MB
| 88.7 MB
|
Events in quadrant A | 3,189,224 | 637,332 |
Events in quadrant B | 2,774,977 | 645,708 |
Events in quadrant C | 2,868,460 | 626,255 |
Events in quadrant D | 6,006,519 | 489,398 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12942 | 2 |
B | 0 | 12441 | 2 |
C | 0 | 12313 | 2 |
D | 0 | 21996 | 4 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 22 | 0 |
C | 0 | 22 | 0 |
D | 0 | 22 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5962 | 15 | 0.251593% |
B | 5962 | 30 | 0.503187% |
C | 5962 | 11 | 0.184502% |
D | 5961 | 1013 | 16.993793% |
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 | 7275 | 5963 | 4 | 4 | 0.05% | 0.07% |  |
B | 7275 | 5963 | 18 | 18 | 0.25% | 0.30% |  |
C | 7275 | 5963 | 6 | 6 | 0.08% | 0.10% |  |
D | 7273 | 5961 | 904 | 904 | 12.43% | 15.17% |  |
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 | 10 | 83 | 637227 | 4774.43 | 645 | 631 | 133.3 |
A | 13 | 248 | 39254 | 289.67 | 645 | 631 | 133.3 |
A | 3 | 137 | 7356 | 50.44 | 645 | 631 | 133.3 |
B | 0 | 245 | 104132 | 819.06 | 641 | 623 | 126.4 |
B | 15 | 85 | 38085 | 296.43 | 641 | 623 | 126.4 |
B | 5 | 255 | 32731 | 254.07 | 641 | 623 | 126.4 |
C | 15 | 214 | 251662 | 1698.53 | 631 | 633 | 147.8 |
C | 4 | 254 | 116156 | 781.66 | 631 | 633 | 147.8 |
C | 8 | 95 | 20714 | 135.87 | 631 | 633 | 147.8 |
D | 2 | 249 | 3082659 | 21429.46 | 583 | 566 | 143.8 |
D | 12 | 233 | 319700 | 2218.9 | 583 | 566 | 143.8 |
D | 1 | 52 | 130275 | 901.85 | 583 | 566 | 143.8 |
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 |  |