Observation information
- date-obs: 2025-10-09
- time-obs: 17:27:06.202100000
- date-end: 2025-10-09
- time-end: 19:44:42.182800000
- obs_id: A14_126T15_9000006516
- exposure: 7919.72909009
- 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_54275cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54275cztM0_level2_quad_clean.evt
|
| Size (bytes) | 525,582,720 | 118,465,920 |
| Size | 501.2 MB
| 113.0 MB
|
| Events in quadrant A | 4,177,968 | 788,834 |
| Events in quadrant B | 4,594,083 | 819,046 |
| Events in quadrant C | 4,631,655 | 723,908 |
| Events in quadrant D | 5,410,657 | 681,910 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 164 | 0 |
| B | 0 | 164 | 0 |
| C | 0 | 164 | 0 |
| D | 0 | 164 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18235 | 3 |
| B | 0 | 19519 | 2 |
| C | 0 | 19831 | 0 |
| D | 0 | 21832 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8254 | 39 | 0.472498% |
| B | 8255 | 251 | 3.040581% |
| C | 8256 | 257 | 3.112888% |
| D | 8256 | 271 | 3.282461% |
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 | 8256 | 8255 | 37 | 37 | 0.45% | 0.45% |  |
| B | 8255 | 8255 | 198 | 198 | 2.40% | 2.40% |  |
| C | 8256 | 8256 | 206 | 206 | 2.50% | 2.50% |  |
| D | 8256 | 8256 | 264 | 264 | 3.20% | 3.20% |  |
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 | 5 | 265427 | 1211.6 | 879 | 858 | 218.4 |
| A | 0 | 8 | 126536 | 575.55 | 879 | 858 | 218.4 |
| A | 11 | 3 | 117338 | 533.42 | 879 | 858 | 218.4 |
| B | 5 | 185 | 438750 | 2385.31 | 859 | 828 | 183.6 |
| B | 5 | 172 | 302968 | 1645.72 | 859 | 828 | 183.6 |
| B | 0 | 213 | 138276 | 748.66 | 859 | 828 | 183.6 |
| C | 1 | 29 | 378241 | 1654.05 | 843 | 836 | 228.2 |
| C | 12 | 249 | 275754 | 1204.88 | 843 | 836 | 228.2 |
| C | 4 | 5 | 188281 | 821.51 | 843 | 836 | 228.2 |
| D | 3 | 12 | 1280029 | 5333.55 | 848 | 809 | 239.8 |
| D | 8 | 176 | 181350 | 752.74 | 848 | 809 | 239.8 |
| D | 10 | 181 | 150312 | 623.33 | 848 | 809 | 239.8 |
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 |  |