ASTROSAT CZTI

Data Quality Report

Orbit 14141

Creation date: 2024-06-27T16:50:52.921513
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/AS1A04_218T04_9000002086_14141cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14141cztM0_level2_quad_clean.evt
Size (bytes)524,007,36069,713,280
Size499.7 MB 66.5 MB
Events in quadrant A3,495,765417,084
Events in quadrant B3,614,492414,101
Events in quadrant C3,707,893420,797
Events in quadrant D4,609,842404,532

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143173
B0147302
C0147552
D0187492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65141231.888241%
B65141422.179920%
C65141011.550507%
D65141752.686521%

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 7800 6516 0 0 0.00% 0.00%
B 7800 6516 0 0 0.00% 0.00%
C 7800 6516 2 2 0.03% 0.03%
D 7800 6516 52 52 0.67% 0.80%

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 2 79 9720 48.72 904 887 181.3
A 0 226 8045 39.48 904 887 181.3
A 8 15 7542 36.71 904 887 181.3
B 0 189 43499 254.11 891 870 167.8
B 3 209 33286 193.23 891 870 167.8
B 0 214 29397 170.05 891 870 167.8
C 3 233 302691 1520.96 871 879 198.4
C 13 61 6363 27.64 871 879 198.4
C 14 234 5694 24.26 871 879 198.4
D 8 195 618931 3036.49 870 851 203.6
D 7 80 337605 1654.4 870 851 203.6
D 2 152 164440 803.68 870 851 203.6

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