ASTROSAT CZTI

Data Quality Report

Orbit 37930

Creation date: 2024-06-27T21:46:16.606132
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/AS1T05_059T01_9000005354_37930cztM0_level2.evt modeM0/AS1T05_059T01_9000005354_37930cztM0_level2_quad_clean.evt
Size (bytes)183,021,12041,909,760
Size174.5 MB 40.0 MB
Events in quadrant A1,385,547280,382
Events in quadrant B1,611,943274,176
Events in quadrant C1,059,051282,506
Events in quadrant D1,328,528266,562

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056651
B064041
C047131
D055921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A228840.174825%
B22881305.681818%
C228850.218531%
D22881054.589161%

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 2288 2288 2 2 0.09% 0.09%
B 2288 2288 117 117 5.11% 5.11%
C 2288 2288 2 2 0.09% 0.09%
D 2288 2288 90 90 3.93% 3.93%

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 12 189 234336 4500.6 247 243 52.0
A 10 83 183596 3525.09 247 243 52.0
A 13 248 5486 100.8 247 243 52.0
B 5 172 498813 10313.76 238 232 48.3
B 0 229 90846 1874.46 238 232 48.3
B 0 230 50795 1045.96 238 232 48.3
C 15 214 97250 1724.22 234 235 56.3
C 0 10 33148 584.95 234 235 56.3
C 14 254 5949 101.55 234 235 56.3
D 13 249 163858 2807.42 233 227 58.3
D 10 253 115018 1969.47 233 227 58.3
D 10 199 38792 661.66 233 227 58.3

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