ASTROSAT CZTI

Data Quality Report

Orbit 23132

Creation date: 2024-06-27T18:50:18.092532
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_173T01_9000003416_23132cztM0_level2.evt modeM0/AS1T03_173T01_9000003416_23132cztM0_level2_quad_clean.evt
Size (bytes)687,447,360103,806,720
Size655.6 MB 99.0 MB
Events in quadrant A2,986,918743,482
Events in quadrant B10,788,060510,759
Events in quadrant C3,215,543739,295
Events in quadrant D3,404,927712,296

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130222
B0362152
C0136692
D0145343

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260220.351438%
B6260334653.450479%
C62601191.900958%
D6259911.453906%

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 7510 6261 0 0 0.00% 0.00%
B 7510 6261 3040 3040 40.48% 48.55%
C 7510 6261 15 15 0.20% 0.24%
D 7509 6260 30 30 0.40% 0.48%

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 6 16 27233 171.49 768 752 154.4
A 13 254 9682 57.83 768 752 154.4
A 0 226 6592 37.82 768 752 154.4
B 5 31 4591357 43751.84 565 551 104.9
B 5 15 2280488 21728.53 565 551 104.9
B 5 14 1682294 16027.55 565 551 104.9
C 14 238 121024 697.06 750 756 172.5
C 2 16 68809 394.43 750 756 172.5
C 0 10 56191 321.29 750 756 172.5
D 1 52 232084 1277.7 748 726 181.1
D 1 239 93093 510.11 748 726 181.1
D 12 233 71466 390.67 748 726 181.1

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