ASTROSAT CZTI

Data Quality Report

Orbit 47484

Creation date: 2024-07-09T16:27:04.683160
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_089T01_9000006330_47484cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47484cztM0_level2_quad_clean.evt
Size (bytes)841,475,520168,485,760
Size802.5 MB 160.7 MB
Events in quadrant A11,369,9051,106,171
Events in quadrant B7,241,8411,124,052
Events in quadrant C5,109,9311,110,630
Events in quadrant D6,591,8371,011,674

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0422992
B0288492
C0229212
D0272712

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A108024313.990002%
B108036806.294548%
C108032101.943904%
D108033643.369434%

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 12152 10804 26 26 0.21% 0.24%
B 12153 10805 308 308 2.53% 2.85%
C 12153 10805 70 70 0.58% 0.65%
D 12153 10805 194 194 1.60% 1.80%

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 83 6170030 24487.87 1202 1173 251.9
A 9 191 397754 1574.27 1202 1173 251.9
A 15 235 103518 406.27 1202 1173 251.9
B 5 32 1089403 4631.56 1190 1153 235.0
B 0 186 803887 3416.41 1190 1153 235.0
B 0 200 439846 1867.07 1190 1153 235.0
C 0 207 402360 1427.36 1192 1196 281.1
C 3 233 29228 99.74 1192 1196 281.1
C 12 250 11459 36.52 1192 1196 281.1
D 2 165 1525314 5064.72 1188 1148 300.9
D 2 249 173062 571.26 1188 1148 300.9
D 11 192 72422 236.84 1188 1148 300.9

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