ASTROSAT CZTI

Data Quality Report

Orbit 17383

Creation date: 2024-06-27T17:35:47.821877
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/AS1A05_074T02_9000002572_17383cztM0_level2.evt modeM0/AS1A05_074T02_9000002572_17383cztM0_level2_quad_clean.evt
Size (bytes)185,578,56037,805,760
Size177.0 MB 36.1 MB
Events in quadrant A1,281,924252,772
Events in quadrant B1,298,759257,193
Events in quadrant C1,268,972239,117
Events in quadrant D1,615,655233,012

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052301
B052901
C051491
D062771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A22521084.795737%
B22521014.484902%
C22511094.842292%
D22511657.330076%

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 3552 2252 0 0 0.00% 0.00%
B 3552 2252 0 0 0.00% 0.00%
C 3551 2252 0 0 0.00% 0.00%
D 3551 2251 48 48 1.35% 2.13%

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 0 226 2963 38.8 332 325 68.0
A 12 194 2526 32.37 332 325 68.0
A 3 137 2235 28.09 332 325 68.0
B 0 189 17008 263.6 326 319 63.3
B 12 111 7019 105.82 326 319 63.3
B 11 111 6235 93.44 326 319 63.3
C 14 238 49217 675.7 309 310 72.4
C 5 218 8948 119.34 309 310 72.4
C 3 233 3587 45.27 309 310 72.4
D 13 232 237205 2994.17 315 306 79.1
D 13 189 65768 827.38 315 306 79.1
D 11 176 50294 631.8 315 306 79.1

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