ASTROSAT CZTI

Data Quality Report

Orbit 30287

Creation date: 2024-06-27T20:13:09.439523
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/AS1A10_007T01_9000004350_30287cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30287cztM0_level2_quad_clean.evt
Size (bytes)644,834,88085,538,880
Size615.0 MB 81.6 MB
Events in quadrant A3,503,639526,741
Events in quadrant B5,605,293530,314
Events in quadrant C3,931,642524,590
Events in quadrant D5,997,505503,439

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151032
B0223222
C0159682
D0226752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72452793.850932%
B72453474.789510%
C72463034.181617%
D72467149.853712%

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 7275 7246 0 0 0.00% 0.00%
B 7275 7247 1 1 0.01% 0.01%
C 7276 7248 0 0 0.00% 0.00%
D 7276 7248 366 366 5.03% 5.05%

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 13 254 12242 61.32 908 886 185.2
A 3 137 9711 47.66 908 886 185.2
A 0 226 7434 35.36 908 886 185.2
B 6 159 1986049 11272.42 886 862 176.1
B 0 229 107373 604.8 886 862 176.1
B 0 190 23555 128.86 886 862 176.1
C 3 233 334241 1603.57 874 879 207.9
C 14 238 140893 673.51 874 879 207.9
C 10 22 35947 168.69 874 879 207.9
D 1 52 1791740 8363.54 873 852 214.1
D 13 104 637679 2974.01 873 852 214.1
D 8 195 168838 784.5 873 852 214.1

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