Observation information
- date-obs: 2025-10-27
- time-obs: 15:43:09.203800000
- date-end: 2025-10-27
- time-end: 17:57:26.183900000
- obs_id: A14_127T09_9000006520
- exposure: 6302.71616733
- sourceid: PG0909+276
- observer: snehalata
- ra_pnt: 138.2153
- dec_pnt: 27.34205
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_127T09_9000006520_54541cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54541cztM0_level2_quad_clean.evt
|
| Size (bytes) | 475,675,200 | 98,389,440 |
| Size | 453.6 MB
| 93.8 MB
|
| Events in quadrant A | 4,054,161 | 651,566 |
| Events in quadrant B | 3,850,609 | 685,527 |
| Events in quadrant C | 3,974,503 | 618,370 |
| Events in quadrant D | 5,203,346 | 551,972 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16227 | 2 |
| B | 0 | 16108 | 6 |
| C | 0 | 16508 | 2 |
| D | 0 | 20141 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6767 | 104 | 1.536870% |
| B | 6766 | 200 | 2.955956% |
| C | 6766 | 111 | 1.640556% |
| D | 6766 | 473 | 6.990837% |
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 | 7727 | 6767 | 21 | 21 | 0.27% | 0.31% |  |
| B | 7726 | 6766 | 139 | 139 | 1.80% | 2.05% |  |
| C | 7726 | 6766 | 70 | 70 | 0.91% | 1.03% |  |
| D | 7726 | 6766 | 419 | 419 | 5.42% | 6.19% |  |
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 | 11 | 3 | 453341 | 2442.83 | 754 | 736 | 185.3 |
| A | 3 | 14 | 351106 | 1891.04 | 754 | 736 | 185.3 |
| A | 14 | 235 | 146883 | 788.8 | 754 | 736 | 185.3 |
| B | 5 | 172 | 223594 | 1401.04 | 739 | 713 | 159.1 |
| B | 0 | 216 | 221042 | 1385.0 | 739 | 713 | 159.1 |
| B | 2 | 249 | 166662 | 1043.17 | 739 | 713 | 159.1 |
| C | 12 | 252 | 621124 | 3070.52 | 736 | 730 | 202.0 |
| C | 14 | 254 | 130285 | 641.21 | 736 | 730 | 202.0 |
| C | 13 | 3 | 61928 | 302.89 | 736 | 730 | 202.0 |
| D | 1 | 3 | 1388861 | 6793.07 | 719 | 685 | 204.4 |
| D | 3 | 12 | 542774 | 2652.73 | 719 | 685 | 204.4 |
| D | 8 | 160 | 63164 | 305.74 | 719 | 685 | 204.4 |
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 |  |