ASTROSAT CZTI

Data Quality Report

Orbit 03121

Creation date: 2024-06-27T14:24:54.915235
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/AS1G05_214T01_9000000428_03121cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03121cztM0_level2_quad_clean.evt
Size (bytes)489,041,28087,166,080
Size466.4 MB 83.1 MB
Events in quadrant A5,265,993501,047
Events in quadrant B3,012,190571,794
Events in quadrant C3,072,369568,246
Events in quadrant D3,013,241539,713

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201120
B0135560
C0137900
D0140450

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A657096714.718417%
B6570280.426180%
C6570821.248097%
D6570640.974125%

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 7500 6571 726 726 9.68% 11.05%
B 7500 6571 0 0 0.00% 0.00%
C 7500 6571 18 18 0.24% 0.27%
D 7500 6571 39 39 0.52% 0.59%

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 0 13 2458021 17211.56 683 667 142.8
A 8 15 128770 897.25 683 667 142.8
A 12 189 22553 153.29 683 667 142.8
B 2 249 33217 223.83 754 737 145.1
B 15 204 11013 70.81 754 737 145.1
B 4 81 10916 70.15 754 737 145.1
C 14 223 164988 966.72 720 725 169.9
C 6 80 34200 197.01 720 725 169.9
C 0 219 25643 146.65 720 725 169.9
D 13 223 187130 1075.0 710 689 173.4
D 13 239 53734 305.85 710 689 173.4
D 10 85 21308 118.89 710 689 173.4

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