ASTROSAT CZTI

Data Quality Report

Orbit 29316

Creation date: 2024-06-27T20:02:56.193571
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/AS1A10_083T01_9000004214_29316cztM0_level2.evt modeM0/AS1A10_083T01_9000004214_29316cztM0_level2_quad_clean.evt
Size (bytes)253,146,24027,786,240
Size241.4 MB 26.5 MB
Events in quadrant A1,224,417171,904
Events in quadrant B1,250,671172,871
Events in quadrant C2,358,810158,535
Events in quadrant D2,658,255154,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053600
B054030
C087210
D096660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A254430.117925%
B254550.196464%
C25451003.929273%
D25452429.508841%

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 2544 2544 0 0 0.00% 0.00%
B 2545 2545 3 3 0.12% 0.12%
C 2545 2545 47 47 1.85% 1.85%
D 2544 2544 225 225 8.84% 8.84%

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 14 235 99595 1664.26 287 281 59.7
A 1 113 7187 115.73 287 281 59.7
A 13 254 5669 90.29 287 281 59.7
B 0 190 75968 1343.08 286 279 56.4
B 3 209 40762 718.36 286 279 56.4
B 5 255 8370 143.57 286 279 56.4
C 3 233 1260152 19888.69 268 269 63.3
C 14 238 43470 681.98 268 269 63.3
C 2 114 6239 94.24 268 269 63.3
D 1 52 709828 10905.38 264 257 65.1
D 8 195 482037 7404.46 264 257 65.1
D 2 250 317641 4877.87 264 257 65.1

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