ASTROSAT CZTI

Data Quality Report

Orbit 45604

Creation date: 2024-06-27T23:14:07.236653
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/AS1A13_082T02_9000006112_45604cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45604cztM0_level2_quad_clean.evt
Size (bytes)480,044,160113,808,960
Size457.8 MB 108.5 MB
Events in quadrant A5,723,524770,596
Events in quadrant B3,744,793797,109
Events in quadrant C3,237,989757,705
Events in quadrant D4,562,373671,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211281
B0153921
C0139791
D0178491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64532583.998140%
B64532804.339067%
C64521372.123373%
D64533154.881450%

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 7603 6453 20 20 0.26% 0.31%
B 7603 6453 113 113 1.49% 1.75%
C 7602 6453 46 46 0.61% 0.71%
D 7603 6453 215 215 2.83% 3.33%

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 10 83 2688977 16972.75 767 751 158.4
A 13 248 50086 311.49 767 751 158.4
A 7 191 10015 58.49 767 751 158.4
B 15 201 367704 2509.04 760 738 146.3
B 5 172 181510 1235.98 760 738 146.3
B 10 3 52553 354.27 760 738 146.3
C 14 254 269207 1527.45 753 756 175.8
C 3 233 25662 141.71 753 756 175.8
C 13 61 5173 25.13 753 756 175.8
D 11 241 622027 3335.3 747 723 186.3
D 5 33 283499 1518.0 747 723 186.3
D 13 249 212844 1138.71 747 723 186.3

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