ASTROSAT CZTI

Data Quality Report

Orbit 12829

Creation date: 2024-06-27T16:32:52.089969
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/AS1G08_071T01_9000001888_12829cztM0_level2.evt modeM0/AS1G08_071T01_9000001888_12829cztM0_level2_quad_clean.evt
Size (bytes)556,580,160101,355,840
Size530.8 MB 96.7 MB
Events in quadrant A3,450,095659,343
Events in quadrant B5,693,399589,459
Events in quadrant C3,365,524665,703
Events in quadrant D3,842,417637,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153973
B0220652
C0153082
D0167342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7435370.497646%
B7435101213.611298%
C7435190.255548%
D7435740.995293%

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 7731 7437 0 0 0.00% 0.00%
B 7731 7437 663 663 8.58% 8.91%
C 7731 7437 0 0 0.00% 0.00%
D 7731 7437 46 46 0.60% 0.62%

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 12 189 57743 316.66 880 859 179.6
A 15 222 10595 54.2 880 859 179.6
A 0 226 7631 37.7 880 859 179.6
B 4 239 2231144 14460.32 806 786 154.2
B 0 219 172688 1114.51 806 786 154.2
B 0 85 44457 283.14 806 786 154.2
C 13 61 6285 27.04 862 865 200.4
C 3 233 3918 15.23 862 865 200.4
C 8 222 3155 11.43 862 865 200.4
D 1 52 359442 1587.61 844 828 225.9
D 13 172 111931 491.86 844 828 225.9
D 2 136 87682 384.51 844 828 225.9

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