Observation information
- date-obs: 2025-10-12
- time-obs: 00:48:37.706500000
- date-end: 2025-10-12
- time-end: 03:16:01.682800000
- obs_id: A14_126T15_9000006516
- exposure: 3765.09421533
- sourceid: FBS1133+754
- observer: sharmila
- ra_pnt: 174.1395
- dec_pnt: 75.11491
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_126T15_9000006516_54310cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54310cztM0_level2_quad_clean.evt
|
| Size (bytes) | 601,208,640 | 92,833,920 |
| Size | 573.4 MB
| 88.5 MB
|
| Events in quadrant A | 3,537,844 | 647,848 |
| Events in quadrant B | 3,696,495 | 706,858 |
| Events in quadrant C | 3,237,081 | 634,801 |
| Events in quadrant D | 11,242,518 | 336,686 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15815 | 2 |
| B | 0 | 15742 | 2 |
| C | 0 | 14906 | 2 |
| D | 0 | 38194 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6954 | 165 | 2.372735% |
| B | 6955 | 87 | 1.250899% |
| C | 6955 | 45 | 0.647017% |
| D | 6955 | 3358 | 48.281812% |
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 | 8844 | 6956 | 126 | 126 | 1.42% | 1.81% |  |
| B | 8845 | 6957 | 31 | 31 | 0.35% | 0.45% |  |
| C | 8845 | 6957 | 23 | 23 | 0.26% | 0.33% |  |
| D | 8845 | 6956 | 2849 | 2849 | 32.21% | 40.96% |  |
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 | 7 | 29 | 355103 | 1986.21 | 722 | 706 | 178.4 |
| A | 15 | 174 | 265531 | 1484.2 | 722 | 706 | 178.4 |
| A | 0 | 8 | 29200 | 159.69 | 722 | 706 | 178.4 |
| B | 7 | 0 | 355639 | 2272.21 | 723 | 697 | 156.2 |
| B | 0 | 213 | 210953 | 1345.98 | 723 | 697 | 156.2 |
| B | 5 | 185 | 112554 | 716.07 | 723 | 697 | 156.2 |
| C | 15 | 157 | 201635 | 1011.15 | 712 | 702 | 198.7 |
| C | 14 | 254 | 82634 | 412.31 | 712 | 702 | 198.7 |
| C | 12 | 252 | 61179 | 304.34 | 712 | 702 | 198.7 |
| D | 8 | 176 | 8641844 | 59781.78 | 504 | 481 | 144.5 |
| D | 2 | 172 | 283189 | 1955.8 | 504 | 481 | 144.5 |
| D | 3 | 12 | 150954 | 1040.99 | 504 | 481 | 144.5 |
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 |  |