ASTROSAT CZTI

Data Quality Report

Orbit 10568

Creation date: 2024-06-27T16:00:56.341630
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/AS1G07_004T01_9000001532_10568cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10568cztM0_level2_quad_clean.evt
Size (bytes)722,672,640122,791,680
Size689.2 MB 117.1 MB
Events in quadrant A4,652,292735,625
Events in quadrant B5,851,222759,723
Events in quadrant C4,594,860779,940
Events in quadrant D6,087,671727,528

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022022957
B0258341316
C022067852
D0262651072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022010
B02204
C022012
D022012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226
B0228
C0228
D0226

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10308290.281335%
B103253553.438257%
C10355170.164172%
D10332910.880759%

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 12999 10437 1 1 0.01% 0.01%
B 12999 10461 163 163 1.25% 1.56%
C 12999 10491 5 5 0.04% 0.05%
D 12999 10474 65 65 0.50% 0.62%

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 1 162 38540 156.8 1184 1161 238.4
A 13 251 30493 123.05 1184 1161 238.4
A 0 226 10669 39.89 1184 1161 238.4
B 4 239 1117182 4927.64 1187 1159 226.5
B 0 214 41260 177.06 1187 1159 226.5
B 0 219 29501 125.14 1187 1159 226.5
C 14 234 55736 204.79 1163 1170 266.4
C 13 61 8776 28.55 1163 1170 266.4
C 4 175 4562 12.73 1163 1170 266.4
D 2 16 991024 3625.9 1144 1112 273.0
D 12 233 467350 1707.76 1144 1112 273.0
D 8 195 209577 763.57 1144 1112 273.0

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