ASTROSAT CZTI

Data Quality Report

Orbit 34073

Creation date: 2024-06-27T20:56:13.278101
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/AS1C07_001T04_9000004868_34073cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34073cztM0_level2_quad_clean.evt
Size (bytes)463,536,000103,852,800
Size442.1 MB 99.0 MB
Events in quadrant A2,474,842709,491
Events in quadrant B3,720,300714,651
Events in quadrant C3,585,103693,612
Events in quadrant D3,897,091654,962

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107633
B0145732
C0140182
D0153012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A531640.075245%
B53162574.834462%
C5316881.655380%
D5316911.711813%

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 7259 5317 0 0 0.00% 0.00%
B 7259 5317 184 184 2.53% 3.46%
C 7259 5317 66 66 0.91% 1.24%
D 7259 5317 73 73 1.01% 1.37%

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 10 83 18899 146.46 630 620 124.8
A 13 6 11616 88.1 630 620 124.8
A 15 169 9423 70.53 630 620 124.8
B 5 31 489897 4152.8 624 609 117.8
B 5 172 386078 3271.64 624 609 117.8
B 5 15 176433 1492.29 624 609 117.8
C 3 233 463432 3371.35 603 608 137.3
C 0 10 398863 2901.01 603 608 137.3
C 15 214 231003 1678.27 603 608 137.3
D 8 195 995718 6841.35 599 583 145.5
D 13 249 221481 1518.63 599 583 145.5
D 2 250 103700 708.91 599 583 145.5

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