ASTROSAT CZTI

Data Quality Report

Orbit 06382

Creation date: 2024-06-27T15:06:33.060495
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/AS1G06_164T01_9000000844_06382cztM0_level2.evt modeM0/AS1G06_164T01_9000000844_06382cztM0_level2_quad_clean.evt
Size (bytes)758,741,760172,368,000
Size723.6 MB 164.4 MB
Events in quadrant A5,159,6161,148,032
Events in quadrant B6,973,1391,130,618
Events in quadrant C4,765,4371,116,563
Events in quadrant D5,355,3621,084,365

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224143
B0276432
C0217892
D0231972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106961381.290202%
B106964504.207180%
C10696600.560957%
D106961030.962977%

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 13151 10698 31 31 0.24% 0.29%
B 13151 10698 316 316 2.40% 2.95%
C 13151 10698 1 1 0.01% 0.01%
D 13151 10698 32 32 0.24% 0.30%

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 15 174 213114 836.01 1270 1243 253.4
A 15 236 30183 114.19 1270 1243 253.4
A 8 15 22216 82.75 1270 1243 253.4
B 0 228 1477232 6334.05 1252 1225 233.0
B 0 229 213951 912.88 1252 1225 233.0
B 0 219 166489 709.2 1252 1225 233.0
C 4 254 31299 110.36 1203 1209 272.7
C 1 241 20194 69.63 1203 1209 272.7
C 13 61 9885 31.82 1203 1209 272.7
D 2 152 252996 856.8 1217 1178 293.9
D 12 221 125370 422.56 1217 1178 293.9
D 11 241 125302 422.33 1217 1178 293.9

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