ASTROSAT CZTI

Data Quality Report

Orbit 05936

Creation date: 2024-06-27T15:01:01.472012
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/AS1G06_027T01_9000000770_05936cztM0_level2.evt modeM0/AS1G06_027T01_9000000770_05936cztM0_level2_quad_clean.evt
Size (bytes)476,913,60070,084,800
Size454.8 MB 66.8 MB
Events in quadrant A3,085,358421,304
Events in quadrant B3,285,028428,009
Events in quadrant C3,034,153423,081
Events in quadrant D4,595,052393,992

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01356079
B01393870
C01350480
D018124137

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6528911.393995%
B65341151.760024%
C6526761.164572%
D65251291.977011%

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 7576 6565 0 0 0.00% 0.00%
B 7576 6567 5 5 0.07% 0.08%
C 7576 6565 0 0 0.00% 0.00%
D 7576 6565 38 38 0.50% 0.58%

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 7 16 21666 127.23 795 776 164.2
A 12 194 7711 42.24 795 776 164.2
A 0 226 7606 41.6 795 776 164.2
B 15 204 65432 414.74 804 786 155.9
B 15 85 29019 181.13 804 786 155.9
B 4 48 19374 119.25 804 786 155.9
C 9 68 20024 106.36 772 775 181.0
C 13 61 6294 30.5 772 775 181.0
C 1 16 2049 7.04 772 775 181.0
D 2 63 475056 2524.52 763 741 187.9
D 1 20 472228 2509.47 763 741 187.9
D 1 239 368464 1957.19 763 741 187.9

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