ASTROSAT CZTI

Data Quality Report

Orbit 14197

Creation date: 2024-06-27T16:51:43.934941
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/AS1C03_022T01_9000002098_14197cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14197cztM0_level2_quad_clean.evt
Size (bytes)467,619,84088,139,520
Size446.0 MB 84.1 MB
Events in quadrant A3,163,391571,717
Events in quadrant B3,287,979575,835
Events in quadrant C3,125,801547,070
Events in quadrant D4,159,199537,031

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132122
B0136481
C0130411
D0166311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6274681.083838%
B6274580.924450%
C6274220.350653%
D62741061.689512%

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 7450 6276 20 20 0.27% 0.32%
B 7450 6276 8 8 0.11% 0.13%
C 7450 6276 0 0 0.00% 0.00%
D 7450 6276 83 83 1.11% 1.32%

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 96 112116 703.68 784 769 158.2
A 9 143 13913 83.07 784 769 158.2
A 14 111 11269 66.36 784 769 158.2
B 4 142 60204 402.06 778 761 147.8
B 0 219 49684 330.91 778 761 147.8
B 0 189 47783 318.05 778 761 147.8
C 3 233 222627 1296.95 743 749 171.1
C 13 61 5416 27.28 743 749 171.1
C 0 207 4519 22.04 743 749 171.1
D 5 222 637828 3503.15 747 729 181.9
D 8 195 238202 1305.77 747 729 181.9
D 10 199 124417 680.11 747 729 181.9

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