ASTROSAT CZTI

Data Quality Report

Orbit 14590

Creation date: 2024-06-27T16:57:13.972313
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/AS1G08_055T02_9000002148_14590cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14590cztM0_level2_quad_clean.evt
Size (bytes)735,102,720111,496,320
Size701.0 MB 106.3 MB
Events in quadrant A8,132,656701,467
Events in quadrant B3,741,984745,625
Events in quadrant C5,404,777731,892
Events in quadrant D4,521,852720,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290003
B0155022
C0212062
D0178432

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68554686.827133%
B68551422.071481%
C68551492.173596%
D68553274.770241%

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 9511 6858 73 73 0.77% 1.06%
B 9511 6858 26 26 0.27% 0.38%
C 9511 6858 0 0 0.00% 0.00%
D 9511 6858 214 214 2.25% 3.12%

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 23 4408257 24784.94 891 872 177.8
A 0 226 266304 1492.66 891 872 177.8
A 12 189 28867 157.43 891 872 177.8
B 10 16 103890 600.06 912 890 171.6
B 0 205 21454 119.8 912 890 171.6
B 12 111 19743 109.83 912 890 171.6
C 3 233 1890364 9172.28 897 904 206.0
C 3 234 11031 49.16 897 904 206.0
C 3 232 8260 35.71 897 904 206.0
D 10 199 732451 3496.02 885 864 209.3
D 12 110 285958 1362.37 885 864 209.3
D 2 152 90150 426.67 885 864 209.3

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