ASTROSAT CZTI

Data Quality Report

Orbit 15458

Creation date: 2024-06-27T17:08:48.270343
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/AS1A04_203T01_9000002284_15458cztM0_level2.evt modeM0/AS1A04_203T01_9000002284_15458cztM0_level2_quad_clean.evt
Size (bytes)125,216,64036,676,800
Size119.4 MB 35.0 MB
Events in quadrant A946,691252,095
Events in quadrant B932,604258,202
Events in quadrant C899,107250,339
Events in quadrant D910,742240,138

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038522
B038531
C036971
D036191

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1476302.032520%
B1476281.897019%
C1476181.219512%
D1476322.168022%

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 1477 1477 3 3 0.20% 0.20%
B 1477 1477 1 1 0.07% 0.07%
C 1477 1477 0 0 0.00% 0.00%
D 1477 1477 9 9 0.61% 0.61%

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 13 248 31154 653.86 230 225 47.3
A 14 238 14172 294.85 230 225 47.3
A 14 237 7387 151.41 230 225 47.3
B 0 230 20023 451.67 225 221 43.8
B 3 209 11614 259.86 225 221 43.8
B 0 229 5886 129.21 225 221 43.8
C 3 233 49013 965.17 217 219 50.6
C 0 207 1638 28.07 217 219 50.6
C 13 61 1629 27.89 217 219 50.6
D 2 33 45562 813.9 222 216 55.7
D 7 38 12075 212.85 222 216 55.7
D 2 234 5441 93.78 222 216 55.7

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