ASTROSAT CZTI

Data Quality Report

Orbit 17011

Creation date: 2024-06-27T17:30:46.307288
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/AS1A05_206T01_9000002528_17011cztM0_level2.evt modeM0/AS1A05_206T01_9000002528_17011cztM0_level2_quad_clean.evt
Size (bytes)548,490,240117,224,640
Size523.1 MB 111.8 MB
Events in quadrant A3,611,816758,248
Events in quadrant B4,146,742769,798
Events in quadrant C3,951,327746,484
Events in quadrant D4,369,517731,181

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161571
B0173182
C0166521
D0183261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78292583.295440%
B78283424.368932%
C78282913.717425%
D78283043.883495%

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 7980 7832 0 0 0.00% 0.00%
B 7979 7831 42 42 0.53% 0.54%
C 7979 7831 0 0 0.00% 0.00%
D 7979 7831 41 41 0.51% 0.52%

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 12 189 15242 76.27 934 909 187.9
A 15 174 8677 41.33 934 909 187.9
A 0 226 8141 38.48 934 909 187.9
B 3 64 149902 838.71 929 904 177.7
B 0 219 72499 403.01 929 904 177.7
B 0 189 58716 325.42 929 904 177.7
C 3 233 275597 1302.72 905 909 210.9
C 14 238 139149 655.61 905 909 210.9
C 13 61 6438 26.22 905 909 210.9
D 1 52 812941 3641.31 918 888 223.0
D 2 234 35563 155.48 918 888 223.0
D 10 70 24979 108.02 918 888 223.0

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