ASTROSAT CZTI

Data Quality Report

Orbit 30286

Creation date: 2024-06-27T20:13:08.459704
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/AS1A10_007T01_9000004350_30286cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30286cztM0_level2_quad_clean.evt
Size (bytes)727,686,720106,404,480
Size694.0 MB 101.5 MB
Events in quadrant A3,838,144679,122
Events in quadrant B6,050,073685,644
Events in quadrant C4,137,354677,480
Events in quadrant D7,475,834628,082

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165131
B0241351
C0169661
D0274483

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79352943.705104%
B79353774.751103%
C79353634.574669%
D7934134416.939753%

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 7935 7935 0 0 0.00% 0.00%
B 7935 7935 1 1 0.01% 0.01%
C 7935 7935 0 0 0.00% 0.00%
D 7934 7934 982 982 12.38% 12.38%

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 13 254 14052 64.76 990 968 202.0
A 8 192 10801 48.67 990 968 202.0
A 3 137 10477 47.07 990 968 202.0
B 6 159 2179492 11396.03 974 948 191.2
B 0 190 28878 146.1 974 948 191.2
B 12 111 23808 119.58 974 948 191.2
C 3 233 175758 768.4 961 963 227.5
C 14 238 166156 726.19 961 963 227.5
C 14 254 20410 85.49 961 963 227.5
D 1 52 2345356 10525.8 918 895 222.7
D 13 104 1202987 5396.97 918 895 222.7
D 2 250 391723 1754.68 918 895 222.7

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