ASTROSAT CZTI

Data Quality Report

Orbit 32068

Creation date: 2024-06-27T20:36:06.274437
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/AS1A10_109T01_9000004682_32068cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32068cztM0_level2_quad_clean.evt
Size (bytes)603,483,840112,872,960
Size575.5 MB 107.6 MB
Events in quadrant A3,565,519758,487
Events in quadrant B5,831,225741,509
Events in quadrant C3,929,624716,753
Events in quadrant D4,462,514700,087

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149735
B0225171
C0159592
D0178601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7203901.249479%
B72052493.455933%
C72042483.442532%
D72051682.331714%

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 7485 7205 0 0 0.00% 0.00%
B 7485 7205 54 54 0.72% 0.75%
C 7484 7204 13 13 0.17% 0.18%
D 7485 7205 72 72 0.96% 1.00%

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 13 254 13991 70.46 921 905 185.7
A 13 6 12418 61.99 921 905 185.7
A 3 137 9137 44.33 921 905 185.7
B 6 159 1917576 11033.74 898 876 173.7
B 5 172 209357 1200.15 898 876 173.7
B 10 245 109638 626.1 898 876 173.7
C 14 238 181052 880.15 873 881 204.7
C 0 10 126498 613.65 873 881 204.7
C 12 249 80130 387.14 873 881 204.7
D 8 195 638244 2973.92 888 865 214.3
D 2 250 188139 873.79 888 865 214.3
D 7 238 66524 306.35 888 865 214.3

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