ASTROSAT CZTI

Data Quality Report

Orbit 03295

Creation date: 2024-06-27T14:27:14.748965
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/AS1G05_228T02_9000000446_03295cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03295cztM0_level2_quad_clean.evt
Size (bytes)165,792,96034,585,920
Size158.1 MB 33.0 MB
Events in quadrant A993,534227,185
Events in quadrant B1,476,909225,200
Events in quadrant C1,395,081221,819
Events in quadrant D1,009,765219,728

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043282
B058611
C056201
D045071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2105110.522565%
B2105301.425178%
C2105512.422803%
D2105190.902613%

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 3081 2107 0 0 0.00% 0.00%
B 3081 2107 2 2 0.06% 0.09%
C 3081 2107 37 37 1.20% 1.76%
D 3081 2107 8 8 0.26% 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 0 118 3290 55.83 256 250 54.5
A 0 226 2968 49.91 256 250 54.5
A 12 194 2833 47.43 256 250 54.5
B 15 204 420145 8003.07 259 253 52.5
B 4 81 27328 516.04 259 253 52.5
B 14 167 12055 224.94 259 253 52.5
C 7 220 147659 2496.53 243 244 59.0
C 14 223 89152 1505.69 243 244 59.0
C 1 192 79550 1343.08 243 244 59.0
D 13 223 38541 616.04 246 237 62.2
D 1 193 32258 514.99 246 237 62.2
D 10 34 4512 68.75 246 237 62.2

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