Observation information
- date-obs: 2023-07-04
- time-obs: 00:40:08.793000000
- date-end: 2023-07-04
- time-end: 02:55:14.789700000
- obs_id: A12_104T01_9000005728
- exposure: 4688.1994012
- sourceid: Mrk 501
- observer: chandrasunil
- ra_pnt: 253.4676
- dec_pnt: 39.76017
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A12_104T01_9000005728_41981cztM0_level2.fits
| modeM0/AS1A12_104T01_9000005728_41981cztM0_level2_quad_clean.evt
|
Size (bytes) | 283,276,800 | 85,861,440 |
Size | 270.2 MB
| 81.9 MB
|
Events in quadrant A | 2,674,886 | 579,555 |
Events in quadrant B | 2,299,552 | 602,182 |
Events in quadrant C | 2,391,099 | 568,461 |
Events in quadrant D | 2,739,853 | 507,752 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10806 | 3 |
B | 0 | 10031 | 2 |
C | 0 | 10062 | 2 |
D | 0 | 11749 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 33 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4875 | 8 | 0.164103% |
B | 4875 | 11 | 0.225641% |
C | 4875 | 20 | 0.410256% |
D | 4875 | 158 | 3.241026% |
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 | 6938 | 4876 | 4 | 4 | 0.06% | 0.08% |  |
B | 6938 | 4876 | 3 | 3 | 0.04% | 0.06% |  |
C | 6938 | 4876 | 23 | 23 | 0.33% | 0.47% |  |
D | 6938 | 4876 | 137 | 137 | 1.97% | 2.81% |  |
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 | 490941 | 4333.21 | 552 | 542 | 113.2 |
A | 2 | 79 | 46500 | 406.09 | 552 | 542 | 113.2 |
A | 3 | 137 | 5841 | 46.82 | 552 | 542 | 113.2 |
B | 0 | 190 | 51941 | 486.46 | 551 | 536 | 105.7 |
B | 0 | 156 | 28697 | 266.5 | 551 | 536 | 105.7 |
B | 4 | 81 | 27958 | 259.5 | 551 | 536 | 105.7 |
C | 15 | 214 | 200650 | 1600.46 | 536 | 539 | 125.0 |
C | 15 | 111 | 80984 | 643.39 | 536 | 539 | 125.0 |
C | 8 | 79 | 16376 | 126.66 | 536 | 539 | 125.0 |
D | 13 | 249 | 350505 | 2706.27 | 524 | 508 | 129.3 |
D | 12 | 6 | 174651 | 1346.52 | 524 | 508 | 129.3 |
D | 2 | 249 | 152204 | 1172.95 | 524 | 508 | 129.3 |
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 |  |