ASTROSAT CZTI

Data Quality Report

Orbit 08230

Creation date: 2024-06-27T15:29:47.335841
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_070T01_9000001138_08230cztM0_level2.evt modeM0/AS1G07_070T01_9000001138_08230cztM0_level2_quad_clean.evt
Size (bytes)599,333,76094,659,840
Size571.6 MB 90.3 MB
Events in quadrant A4,070,438578,318
Events in quadrant B4,315,285581,367
Events in quadrant C3,978,030575,881
Events in quadrant D5,213,073542,852

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178595
B0182642
C0176102
D0213852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8463820.968924%
B8464941.110586%
C8464550.649811%
D84642693.178166%

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 10149 8466 39 39 0.38% 0.46%
B 10149 8466 16 16 0.16% 0.19%
C 10149 8466 0 0 0.00% 0.00%
D 10149 8465 225 225 2.22% 2.66%

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 5 16 241404 1186.91 994 972 202.6
A 0 226 9312 41.17 994 972 202.6
A 12 194 8889 39.08 994 972 202.6
B 0 214 147870 761.59 1001 978 192.9
B 11 51 84104 430.98 1001 978 192.9
B 4 81 69452 355.01 1001 978 192.9
C 9 68 148747 657.79 964 965 224.7
C 1 16 71761 315.12 964 965 224.7
C 13 61 7272 28.07 964 965 224.7
D 13 105 819691 3517.65 949 917 232.8
D 1 52 670845 2878.17 949 917 232.8
D 2 14 48066 202.56 949 917 232.8

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