ASTROSAT CZTI

Data Quality Report

Orbit 05114

Creation date: 2024-06-27T14:51:29.832244
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_230T05_9000000648_05114cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05114cztM0_level2_quad_clean.evt
Size (bytes)307,298,88045,023,040
Size293.1 MB 42.9 MB
Events in quadrant A1,999,620269,577
Events in quadrant B2,330,438273,016
Events in quadrant C1,949,401270,345
Events in quadrant D2,743,225256,868

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0882
C0882
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0898598
B09757140
C08823105
D011119154

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41581523.655604%
B41441854.464286%
C4153721.733686%
D41522004.816956%

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 4387 4204 8 8 0.18% 0.19%
B 4387 4203 15 15 0.34% 0.36%
C 4387 4204 0 0 0.00% 0.00%
D 4387 4199 83 83 1.89% 1.98%

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 15 174 52553 495.55 505 492 105.1
A 0 226 4978 42.7 505 492 105.1
A 12 194 4948 42.42 505 492 105.1
B 8 3 231052 2280.6 508 496 101.1
B 15 204 46326 453.34 508 496 101.1
B 5 200 28624 278.24 508 496 101.1
C 1 16 6207 48.9 495 496 116.8
C 8 128 4225 31.93 495 496 116.8
C 13 61 4158 31.35 495 496 116.8
D 1 239 342226 2785.37 491 476 122.7
D 13 235 242662 1973.89 491 476 122.7
D 2 136 108525 880.63 491 476 122.7

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