ASTROSAT CZTI

Data Quality Report

Orbit 04514

Creation date: 2024-06-27T14:43:09.753467
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/AS1G05_250T01_9000000568_04514cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04514cztM0_level2_quad_clean.evt
Size (bytes)687,113,280113,546,880
Size655.3 MB 108.3 MB
Events in quadrant A5,418,708705,082
Events in quadrant B4,602,404721,029
Events in quadrant C4,222,997717,862
Events in quadrant D5,938,366653,289

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266044320
B0227162712
C0217812593
D0288984784

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022024
B022022
C022022
D022016

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0312
B0315
C0313
D0311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91352572.813355%
B93211061.137217%
C9319480.515077%
D90282692.979619%

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 30332 9880 110 110 0.36% 1.11%
B 30332 10037 15 15 0.05% 0.15%
C 30332 10038 4 4 0.01% 0.04%
D 30332 9816 213 213 0.70% 2.17%

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 13 884911 4136.3 1055 1033 213.7
A 0 50 312815 1459.05 1055 1033 213.7
A 8 15 66709 307.35 1055 1033 213.7
B 8 3 128208 608.21 1096 1069 209.0
B 4 48 78106 368.53 1096 1069 209.0
B 15 204 60089 282.34 1096 1069 209.0
C 9 247 73683 297.38 1051 1057 244.2
C 14 48 16757 64.29 1051 1057 244.2
C 9 16 11827 44.1 1051 1057 244.2
D 1 20 1123200 4247.97 991 970 264.2
D 13 235 521706 1971.14 991 970 264.2
D 10 40 151813 570.99 991 970 264.2

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