ASTROSAT CZTI

Data Quality Report

Orbit 11652

Creation date: 2024-06-27T16:16:28.578547
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/AS1A04_037T01_9000001716_11652cztM0_level2.evt modeM0/AS1A04_037T01_9000001716_11652cztM0_level2_quad_clean.evt
Size (bytes)513,673,92066,075,840
Size489.9 MB 63.0 MB
Events in quadrant A4,565,851385,000
Events in quadrant B3,627,380400,864
Events in quadrant C3,220,331395,948
Events in quadrant D3,714,236377,301

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180183
B0144842
C0134352
D0148462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63252544.015810%
B63251722.719368%
C63251161.833992%
D63251342.118577%

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 7531 6326 33 33 0.44% 0.52%
B 7531 6326 16 16 0.21% 0.25%
C 7531 6326 0 0 0.00% 0.00%
D 7531 6326 14 14 0.19% 0.22%

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 8 5 786540 4676.22 829 811 168.0
A 1 162 225993 1340.16 829 811 168.0
A 1 178 128196 758.12 829 811 168.0
B 4 239 274821 1733.05 837 819 158.1
B 15 204 69305 433.17 837 819 158.1
B 12 111 18151 109.62 837 819 158.1
C 13 61 6055 27.7 825 830 188.6
C 12 4 3106 12.07 825 830 188.6
C 14 234 1985 6.12 825 830 188.6
D 8 195 253582 1300.85 817 795 194.3
D 13 104 94705 483.26 817 795 194.3
D 1 52 78766 401.24 817 795 194.3

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