ASTROSAT CZTI

Data Quality Report

Orbit 16603

Creation date: 2024-06-27T17:24:58.078717
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/AS1C04_009T01_9000002448_16603cztM0_level2.evt modeM0/AS1C04_009T01_9000002448_16603cztM0_level2_quad_clean.evt
Size (bytes)479,525,760125,078,400
Size457.3 MB 119.3 MB
Events in quadrant A2,993,421844,612
Events in quadrant B3,538,597871,636
Events in quadrant C3,260,312862,661
Events in quadrant D4,311,624779,268

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130813
B0146682
C0137302
D0171002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6162691.119766%
B61621702.758845%
C61621201.947420%
D61626129.931840%

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 7453 6164 9 9 0.12% 0.15%
B 7453 6164 37 37 0.50% 0.60%
C 7453 6164 0 0 0.00% 0.00%
D 7453 6164 460 460 6.17% 7.46%

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 15 174 87498 587.54 741 725 147.7
A 9 143 33409 221.3 741 725 147.7
A 3 1 9076 56.54 741 725 147.7
B 15 35 310570 2214.88 752 732 139.9
B 15 19 93457 662.85 752 732 139.9
B 0 189 42676 299.84 752 732 139.9
C 3 233 253688 1484.69 738 743 170.4
C 14 238 116100 677.1 738 743 170.4
C 7 247 12981 71.83 738 743 170.4
D 2 16 1411436 8310.74 700 680 169.8
D 10 70 108953 637.83 700 680 169.8
D 1 52 106719 624.67 700 680 169.8

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