ASTROSAT CZTI

Data Quality Report

Orbit 14505

Creation date: 2024-06-27T16:56:08.535369
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_066T01_9000002138_14505cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14505cztM0_level2_quad_clean.evt
Size (bytes)512,170,560102,960,000
Size488.4 MB 98.2 MB
Events in quadrant A3,237,675676,723
Events in quadrant B3,820,457683,126
Events in quadrant C3,448,665688,884
Events in quadrant D4,559,872612,524

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138472
B0155571
C0140811
D0178211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6543360.550206%
B65432353.591625%
C6543440.672474%
D65436159.399358%

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 7639 6545 0 0 0.00% 0.00%
B 7639 6545 119 119 1.56% 1.82%
C 7639 6545 2 2 0.03% 0.03%
D 7639 6545 377 377 4.94% 5.76%

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 68262 408.22 814 795 165.3
A 4 2 30726 181.1 814 795 165.3
A 0 226 7264 39.14 814 795 165.3
B 10 245 460458 2994.0 810 791 153.5
B 0 189 69133 445.14 810 791 153.5
B 0 85 23058 145.03 810 791 153.5
C 3 233 227363 1211.62 809 815 187.0
C 0 207 33544 175.04 809 815 187.0
C 5 37 33170 173.04 809 815 187.0
D 10 199 1637244 8010.38 757 744 204.3
D 2 234 23969 113.68 757 744 204.3
D 12 110 14073 65.24 757 744 204.3

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