ASTROSAT CZTI

Data Quality Report

Orbit 15633

Creation date: 2024-06-27T17:11:23.568705
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/AS1T02_086T01_9000002316_15633cztM0_level2.evt modeM0/AS1T02_086T01_9000002316_15633cztM0_level2_quad_clean.evt
Size (bytes)482,094,72085,711,680
Size459.8 MB 81.7 MB
Events in quadrant A3,205,623544,907
Events in quadrant B3,318,057551,576
Events in quadrant C3,493,553542,046
Events in quadrant D4,161,188523,282

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131313
B0134922
C0142932
D0162912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6215971.560740%
B62151101.769912%
C62151712.751408%
D62152303.700724%

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 6216 0 0 0.00% 0.00%
B 7531 6216 0 0 0.00% 0.00%
C 7531 6216 0 0 0.00% 0.00%
D 7531 6216 137 137 1.82% 2.20%

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 3 80 12515 70.91 830 816 165.0
A 0 226 7518 40.62 830 816 165.0
A 12 194 6372 33.67 830 816 165.0
B 0 214 34315 219.29 825 806 152.8
B 0 189 23100 145.89 825 806 152.8
B 12 111 17006 106.01 825 806 152.8
C 3 233 227898 1240.53 802 808 183.1
C 14 238 126517 686.71 802 808 183.1
C 0 207 10981 55.57 802 808 183.1
D 1 52 875009 4532.95 809 789 192.9
D 12 110 76387 391.99 809 789 192.9
D 10 70 50558 258.06 809 789 192.9

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