Observation information
- date-obs: 2018-07-01
- time-obs: 08:21:32.602000000
- date-end: 2018-07-02
- time-end: 14:33:22.582600000
- obs_id: A04_099T01_9000002204
- exposure: 53874.0002243
- sourceid: XTE J1908+094
- observer: jayashreeroy
- ra_pnt: 287.2212
- dec_pnt: 9.384694
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_099T01_9000002204cztM0_level2_bc.evt
| modeM0/AS1A04_099T01_9000002204cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,506,166,720 | 1,174,792,320 |
Size | 3.3 GB
| 1.1 GB
|
Events in quadrant A | 20,139,460 | 7,501,792 |
Events in quadrant B | 32,677,028 | 7,402,175 |
Events in quadrant C | 22,540,208 | 7,223,331 |
Events in quadrant D | 24,492,089 | 7,082,070 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1892 | 0 |
B | 0 | 1892 | 0 |
C | 0 | 1892 | 0 |
D | 0 | 1892 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 158 | 0 |
C | 0 | 158 | 0 |
D | 0 | 159 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 194515 | 0 |
B | 0 | 243141 | 0 |
C | 0 | 200396 | 0 |
D | 0 | 208669 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 92997 | 1440 | 1.548437% |
B | 92997 | 7503 | 8.068002% |
C | 92997 | 1416 | 1.522630% |
D | 92997 | 2035 | 2.188243% |
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 | 107913 | 93001 | 8 | 8 | 0.01% | 0.01% |  |
B | 107911 | 92990 | 2807 | 2807 | 2.60% | 3.02% |  |
C | 107911 | 92998 | 41 | 41 | 0.04% | 0.04% |  |
D | 107911 | 92997 | 356 | 356 | 0.33% | 0.38% |  |
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 | 12 | 189 | 379631 | 340.12 | 5071 | 4982 | 1101.5 |
A | 4 | 2 | 141143 | 123.61 | 5071 | 4982 | 1101.5 |
A | 3 | 1 | 81762 | 69.7 | 5071 | 4982 | 1101.5 |
B | 10 | 16 | 13230222 | 14150.69 | 4905 | 4774 | 934.6 |
B | 3 | 64 | 356584 | 376.42 | 4905 | 4774 | 934.6 |
B | 0 | 229 | 172628 | 179.6 | 4905 | 4774 | 934.6 |
C | 3 | 233 | 1738028 | 1645.38 | 4869 | 4807 | 1053.4 |
C | 9 | 236 | 1580673 | 1496.0 | 4869 | 4807 | 1053.4 |
C | 7 | 247 | 120961 | 110.27 | 4869 | 4807 | 1053.4 |
D | 7 | 254 | 2917664 | 2609.31 | 4885 | 4752 | 1116.4 |
D | 7 | 223 | 1320640 | 1178.74 | 4885 | 4752 | 1116.4 |
D | 10 | 70 | 654619 | 582.13 | 4885 | 4752 | 1116.4 |
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 |  |