Observation information
- date-obs: 2026-09-03
- time-obs: 04:49:20.187500000
- date-end: 2026-09-03
- time-end: 07:09:30.170700000
- obs_id: T05_264T01_9000006602
- exposure: 1956.62593287
- sourceid: 4U 1907+09
- observer: rsharmaphys
- ra_pnt: 287.4085
- dec_pnt: 9.829809
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T05_264T01_9000006602_59157cztM0_level2.fits
| modeM0/AS1T05_264T01_9000006602_59157cztM0_level2_quad_clean.evt
|
| Size (bytes) | 881,605,440 | 105,762,240 |
| Size | 840.8 MB
| 100.9 MB
|
| Events in quadrant A | 3,943,965 | 798,305 |
| Events in quadrant B | 4,467,793 | 869,471 |
| Events in quadrant C | 4,307,496 | 790,554 |
| Events in quadrant D | 19,261,756 | 159,681 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 168 | 0 |
| B | 0 | 168 | 0 |
| C | 0 | 168 | 0 |
| D | 0 | 168 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17872 | 0 |
| B | 0 | 19187 | 0 |
| C | 0 | 18796 | 0 |
| D | 0 | 62919 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8411 | 37 | 0.439900% |
| B | 8411 | 203 | 2.413506% |
| C | 8411 | 58 | 0.689573% |
| D | 8410 | 6761 | 80.392390% |
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 | 8411 | 8411 | 5 | 5 | 0.06% | 0.06% |  |
| B | 8411 | 8411 | 51 | 51 | 0.61% | 0.61% |  |
| C | 8411 | 8411 | 45 | 45 | 0.54% | 0.54% |  |
| D | 8409 | 8409 | 6584 | 6584 | 78.30% | 78.30% |  |
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 | 10 | 251 | 130833 | 546.22 | 970 | 943 | 237.8 |
| A | 3 | 14 | 29002 | 118.0 | 970 | 943 | 237.8 |
| A | 4 | 3 | 17056 | 67.76 | 970 | 943 | 237.8 |
| B | 5 | 185 | 268606 | 1256.83 | 965 | 926 | 213.0 |
| B | 4 | 236 | 238049 | 1113.36 | 965 | 926 | 213.0 |
| B | 5 | 236 | 68132 | 315.55 | 965 | 926 | 213.0 |
| C | 14 | 254 | 178097 | 680.58 | 949 | 941 | 260.3 |
| C | 5 | 250 | 161550 | 617.01 | 949 | 941 | 260.3 |
| C | 12 | 252 | 142647 | 544.39 | 949 | 941 | 260.3 |
| D | 12 | 1 | 12740193 | 125043.78 | 354 | 337 | 101.9 |
| D | 12 | 110 | 4425251 | 43431.25 | 354 | 337 | 101.9 |
| D | 6 | 239 | 478856 | 4696.74 | 354 | 337 | 101.9 |
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 |  |
TCT plots
| Parameter |
TCT0 |
TCT_healed |
| Tct |  |  |