ASTROSAT CZTI

Data Quality Report

Orbit 04666

Creation date: 2024-06-27T14:45:23.804733
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_215T01_9000000586_04666cztM0_level2.evt modeM0/AS1G05_215T01_9000000586_04666cztM0_level2_quad_clean.evt
Size (bytes)573,163,20041,549,760
Size546.6 MB 39.6 MB
Events in quadrant A2,028,981282,734
Events in quadrant B2,209,565287,367
Events in quadrant C2,063,889284,697
Events in quadrant D10,756,88092,184

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091543
B093412
C092652
D0348492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A43971984.503070%
B43972004.548556%
C43971613.661587%
D4397390088.696839%

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 4547 4400 0 0 0.00% 0.00%
B 4547 4400 0 0 0.00% 0.00%
C 4547 4400 2 2 0.04% 0.05%
D 4547 4397 3561 3561 78.32% 80.99%

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 0 226 5189 41.88 526 511 111.7
A 12 194 5094 41.03 526 511 111.7
A 13 14 3090 23.09 526 511 111.7
B 15 204 109567 1027.36 533 519 106.1
B 14 167 17488 159.87 533 519 106.1
B 12 111 10260 91.77 533 519 106.1
C 9 247 25004 199.39 516 516 122.8
C 8 128 9458 72.81 516 516 122.8
C 13 61 4257 30.46 516 516 122.8
D 8 112 9208254 164526.47 223 216 56.0
D 13 235 584836 10445.82 223 216 56.0
D 2 136 33009 585.94 223 216 56.0

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