ASTROSAT CZTI

Data Quality Report

Orbit 12406

Creation date: 2024-06-27T16:26:48.916557
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/AS1G08_083T02_9000001840_12406cztM0_level2.evt modeM0/AS1G08_083T02_9000001840_12406cztM0_level2_quad_clean.evt
Size (bytes)479,543,04078,756,480
Size457.3 MB 75.1 MB
Events in quadrant A3,793,341488,805
Events in quadrant B3,493,465500,327
Events in quadrant C2,881,134494,858
Events in quadrant D3,932,247466,056

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152902
B0141571
C0126981
D0157931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62301352.166934%
B62301963.146067%
C6230590.947030%
D62302524.044944%

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 7236 6231 7 7 0.10% 0.11%
B 7236 6231 55 55 0.76% 0.88%
C 7236 6232 0 0 0.00% 0.00%
D 7236 6231 172 172 2.38% 2.76%

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 13 251 275235 1768.02 762 746 155.3
A 1 162 137641 881.76 762 746 155.3
A 12 189 83055 530.16 762 746 155.3
B 4 239 377150 2609.74 754 736 144.2
B 3 64 51856 354.42 754 736 144.2
B 3 209 30248 204.61 754 736 144.2
C 8 128 7723 40.88 735 740 170.8
C 13 61 5462 27.64 735 740 170.8
C 8 112 4998 24.92 735 740 170.8
D 1 52 970671 5514.64 731 710 175.9
D 10 157 54581 306.28 731 710 175.9
D 2 234 23428 129.16 731 710 175.9

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