ASTROSAT CZTI

Data Quality Report

Orbit 16459

Creation date: 2024-06-27T17:22:59.123433
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/AS1C04_007T04_9000002430_16459cztM0_level2.evt modeM0/AS1C04_007T04_9000002430_16459cztM0_level2_quad_clean.evt
Size (bytes)489,044,16067,435,200
Size466.4 MB 64.3 MB
Events in quadrant A3,225,000398,411
Events in quadrant B3,618,131406,494
Events in quadrant C3,343,201399,473
Events in quadrant D4,183,243384,090

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135693
B0145862
C0136462
D0167582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6490510.785824%
B64901732.665639%
C64901201.848998%
D64901782.742681%

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 7621 6491 1 1 0.01% 0.02%
B 7621 6492 38 38 0.50% 0.59%
C 7621 6491 0 0 0.00% 0.00%
D 7621 6491 130 130 1.71% 2.00%

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 15 174 55619 333.06 821 806 164.6
A 3 1 12513 71.14 821 806 164.6
A 0 226 7420 40.19 821 806 164.6
B 15 35 177791 1127.12 824 803 157.0
B 4 173 56911 357.31 824 803 157.0
B 15 201 50743 318.03 824 803 157.0
C 14 238 123028 657.96 800 805 185.8
C 3 233 80429 428.63 800 805 185.8
C 7 247 12458 62.73 800 805 185.8
D 1 52 771728 3988.99 799 778 193.3
D 5 222 273451 1410.84 799 778 193.3
D 2 33 80989 415.02 799 778 193.3

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