ASTROSAT CZTI

Data Quality Report

Orbit 30615

Creation date: 2024-06-27T20:17:43.812203
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_071T05_9000004412_30615cztM0_level2.evt modeM0/AS1A10_071T05_9000004412_30615cztM0_level2_quad_clean.evt
Size (bytes)648,472,320110,520,000
Size618.4 MB 105.4 MB
Events in quadrant A3,847,057759,313
Events in quadrant B5,433,372750,938
Events in quadrant C4,493,261702,545
Events in quadrant D5,428,051682,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156842
B0203264
C0176662
D0211802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64741261.946247%
B64731782.749884%
C64735438.388691%
D64732704.171173%

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 7819 6475 18 18 0.23% 0.28%
B 7818 6474 3 3 0.04% 0.05%
C 7818 6474 151 151 1.93% 2.33%
D 7818 6474 189 189 2.42% 2.92%

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 117824 617.91 959 947 189.1
A 8 192 24234 123.11 959 947 189.1
A 13 254 12483 60.99 959 947 189.1
B 6 159 1724436 9922.54 927 908 173.7
B 0 229 29954 167.22 927 908 173.7
B 12 111 20477 112.66 927 908 173.7
C 15 208 361623 1806.44 863 871 199.7
C 0 10 277604 1385.72 863 871 199.7
C 3 233 251237 1253.69 863 871 199.7
D 8 195 638773 3025.88 908 889 210.8
D 1 52 633756 3002.08 908 889 210.8
D 5 222 371637 1758.69 908 889 210.8

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