Observation information
- date-obs: 2025-05-10
- time-obs: 02:48:43.110300000
- date-end: 2025-05-10
- time-end: 04:57:21.094100000
- obs_id: C09_011T06_9000006468
- exposure: 5875.11128426
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468_52008cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52008cztM0_level2_quad_clean.evt
|
Size (bytes) | 891,740,160 | 99,365,760 |
Size | 850.4 MB
| 94.8 MB
|
Events in quadrant A | 4,906,619 | 686,032 |
Events in quadrant B | 9,053,254 | 659,318 |
Events in quadrant C | 6,813,972 | 639,849 |
Events in quadrant D | 11,639,899 | 485,623 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19977 | 0 |
B | 0 | 32325 | 0 |
C | 0 | 25686 | 0 |
D | 0 | 40020 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 156 | 0 |
B | 0 | 156 | 0 |
C | 0 | 156 | 0 |
D | 0 | 156 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7718 | 214 | 2.772739% |
B | 7717 | 1408 | 18.245432% |
C | 7717 | 733 | 9.498510% |
D | 7718 | 2217 | 28.725058% |
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 | 7718 | 7718 | 221 | 221 | 2.86% | 2.86% |  |
B | 7717 | 7717 | 823 | 823 | 10.66% | 10.66% |  |
C | 7717 | 7717 | 702 | 702 | 9.10% | 9.10% |  |
D | 7718 | 7718 | 2142 | 2142 | 27.75% | 27.75% |  |
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 | 3 | 14 | 812187 | 4179.0 | 774 | 752 | 194.2 |
A | 4 | 3 | 318243 | 1635.12 | 774 | 752 | 194.2 |
A | 5 | 240 | 231834 | 1190.1 | 774 | 752 | 194.2 |
B | 7 | 0 | 4159102 | 26738.88 | 738 | 713 | 155.5 |
B | 4 | 206 | 663440 | 4261.4 | 738 | 713 | 155.5 |
B | 4 | 171 | 263352 | 1688.79 | 738 | 713 | 155.5 |
C | 15 | 224 | 2409407 | 11685.64 | 740 | 734 | 206.1 |
C | 4 | 5 | 510965 | 2475.38 | 740 | 734 | 206.1 |
C | 15 | 147 | 203215 | 982.33 | 740 | 734 | 206.1 |
D | 2 | 172 | 3008275 | 15548.11 | 677 | 648 | 193.4 |
D | 12 | 6 | 1482164 | 7658.79 | 677 | 648 | 193.4 |
D | 12 | 17 | 1249267 | 6454.81 | 677 | 648 | 193.4 |
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 |  |