Observation information
- date-obs: 2025-10-25
- time-obs: 02:53:09.726800000
- date-end: 2025-10-25
- time-end: 05:17:17.705200000
- obs_id: A14_127T09_9000006520
- exposure: 6815.90898299
- 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_54504cztM0_level2.fits
| modeM0/AS1A14_127T09_9000006520_54504cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,336,960 | 104,538,240 |
| Size | 446.6 MB
| 99.7 MB
|
| Events in quadrant A | 3,254,095 | 695,157 |
| Events in quadrant B | 4,174,252 | 712,321 |
| Events in quadrant C | 5,093,216 | 634,573 |
| Events in quadrant D | 4,249,466 | 617,386 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15181 | 2 |
| B | 0 | 17715 | 2 |
| C | 0 | 20290 | 4 |
| D | 0 | 18209 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7271 | 65 | 0.893962% |
| B | 7271 | 425 | 5.845138% |
| C | 7270 | 406 | 5.584594% |
| D | 7270 | 111 | 1.526823% |
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 | 8031 | 7272 | 1 | 1 | 0.01% | 0.01% |  |
| B | 8031 | 7272 | 215 | 215 | 2.68% | 2.96% |  |
| C | 8030 | 7271 | 329 | 329 | 4.10% | 4.52% |  |
| D | 8030 | 7271 | 96 | 96 | 1.20% | 1.32% |  |
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 | 4 | 3 | 59152 | 301.66 | 793 | 774 | 193.5 |
| A | 8 | 245 | 21803 | 108.66 | 793 | 774 | 193.5 |
| A | 0 | 8 | 16980 | 83.74 | 793 | 774 | 193.5 |
| B | 2 | 249 | 749632 | 4487.62 | 773 | 745 | 166.9 |
| B | 0 | 213 | 137830 | 821.47 | 773 | 745 | 166.9 |
| B | 5 | 185 | 126419 | 753.09 | 773 | 745 | 166.9 |
| C | 13 | 3 | 1036941 | 4972.23 | 758 | 753 | 208.4 |
| C | 4 | 5 | 584127 | 2799.37 | 758 | 753 | 208.4 |
| C | 13 | 65 | 179449 | 857.49 | 758 | 753 | 208.4 |
| D | 3 | 12 | 664843 | 3066.28 | 761 | 729 | 216.6 |
| D | 2 | 16 | 199802 | 919.14 | 761 | 729 | 216.6 |
| D | 8 | 160 | 132642 | 609.06 | 761 | 729 | 216.6 |
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 |  |