ASTROSAT CZTI

Data Quality Report

Orbit 29866

Creation date: 2024-06-27T20:08:27.695043
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/AS1T03_291T01_9000004278_29866cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29866cztM0_level2_quad_clean.evt
Size (bytes)179,832,96030,516,480
Size171.5 MB 29.1 MB
Events in quadrant A1,036,813199,133
Events in quadrant B1,672,708197,787
Events in quadrant C1,335,453187,507
Events in quadrant D1,255,029185,553

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044941
B064651
C053781
D051191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2114562.649007%
B2114954.493851%
C2115632.978723%
D2115703.309693%

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 2769 2115 1 1 0.04% 0.05%
B 2769 2115 0 0 0.00% 0.00%
C 2770 2116 2 2 0.07% 0.09%
D 2770 2116 21 21 0.76% 0.99%

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 8 192 14433 258.65 264 258 54.8
A 13 254 4416 75.87 264 258 54.8
A 3 137 2763 45.71 264 258 54.8
B 6 159 627817 11899.42 263 257 52.7
B 12 111 6246 113.56 263 257 52.7
B 0 190 5556 100.48 263 257 52.7
C 3 233 305211 5090.33 248 249 59.9
C 14 238 39782 659.87 248 249 59.9
C 10 22 16181 265.93 248 249 59.9
D 12 227 75221 1225.03 248 241 61.2
D 8 195 60057 977.28 248 241 61.2
D 1 52 56627 921.24 248 241 61.2

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