ASTROSAT CZTI

Data Quality Report

Orbit 23332

Creation date: 2024-06-27T18:52:56.003003
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/AS1A07_148T05_9000003446_23332cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23332cztM0_level2_quad_clean.evt
Size (bytes)859,452,48070,499,520
Size819.6 MB 67.2 MB
Events in quadrant A4,441,595445,123
Events in quadrant B3,702,373457,694
Events in quadrant C3,730,872440,119
Events in quadrant D13,713,464335,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175492
B0150883
C0151892
D0451972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65352423.703137%
B6534771.178451%
C65341031.576370%
D6534377757.805326%

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 7840 6535 168 168 2.14% 2.57%
B 7839 6534 8 8 0.10% 0.12%
C 7839 6534 0 0 0.00% 0.00%
D 7839 6534 3727 3727 47.54% 57.04%

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 6 16 827344 4425.19 939 926 186.8
A 13 254 9679 46.87 939 926 186.8
A 0 226 8152 38.69 939 926 186.8
B 0 230 37163 210.54 927 910 172.2
B 4 216 24673 138.0 927 910 172.2
B 12 111 19491 107.91 927 910 172.2
C 14 238 146411 698.38 905 914 208.3
C 10 9 23832 110.01 905 914 208.3
C 7 247 22655 104.36 905 914 208.3
D 7 223 10177906 56618.38 747 726 179.8
D 7 238 353815 1964.33 747 726 179.8
D 1 52 185687 1028.99 747 726 179.8

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