ASTROSAT CZTI

Data Quality Report

Orbit 22223

Creation date: 2024-06-27T18:38:17.992684
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/AS1A07_054T01_9000003286_22223cztM0_level2.evt modeM0/AS1A07_054T01_9000003286_22223cztM0_level2_quad_clean.evt
Size (bytes)521,320,320145,048,320
Size497.2 MB 138.3 MB
Events in quadrant A3,634,082985,131
Events in quadrant B3,789,484995,761
Events in quadrant C3,638,130940,615
Events in quadrant D4,195,255928,080

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160692
B0162982
C0160932
D0177303

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78121391.779314%
B78131682.150262%
C78131962.508639%
D78121732.214542%

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 7957 7813 4 4 0.05% 0.05%
B 7958 7814 0 0 0.00% 0.00%
C 7958 7814 4 4 0.05% 0.05%
D 7957 7813 81 81 1.02% 1.04%

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 5 168 24123 124.0 935 914 187.2
A 13 254 12680 62.86 935 914 187.2
A 3 137 8246 39.17 935 914 187.2
B 0 245 115191 649.15 926 900 176.1
B 0 190 31603 174.38 926 900 176.1
B 12 111 21573 117.42 926 900 176.1
C 14 238 141618 682.53 885 887 206.2
C 10 22 39084 185.25 885 887 206.2
C 13 61 6225 25.89 885 887 206.2
D 12 227 446084 2033.29 902 870 219.0
D 1 52 133381 605.18 902 870 219.0
D 5 243 125537 569.35 902 870 219.0

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