ASTROSAT CZTI

Data Quality Report

Orbit 06405

Creation date: 2024-06-27T15:06:46.944999
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/AS1C02_011T01_9000000850_06405cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06405cztM0_level2_quad_clean.evt
Size (bytes)304,652,16049,190,400
Size290.5 MB 46.9 MB
Events in quadrant A2,044,348295,439
Events in quadrant B2,168,550295,682
Events in quadrant C2,550,199294,991
Events in quadrant D2,156,363286,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093732
B095961
C0109201
D096721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4497350.778297%
B4497491.089615%
C4497370.822771%
D4497220.489215%

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 4497 4497 8 8 0.18% 0.18%
B 4497 4497 16 16 0.36% 0.36%
C 4497 4497 30 30 0.67% 0.67%
D 4497 4497 13 13 0.29% 0.29%

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 40755 389.14 501 490 103.5
A 15 236 21190 200.06 501 490 103.5
A 13 251 20530 193.68 501 490 103.5
B 0 228 135744 1369.49 506 494 98.8
B 15 204 24950 247.63 506 494 98.8
B 4 81 23077 228.67 506 494 98.8
C 8 208 559390 4820.41 490 492 115.9
C 9 16 74608 639.24 490 492 115.9
C 13 61 3922 29.58 490 492 115.9
D 2 152 132987 1099.74 490 475 120.5
D 11 241 38428 314.98 490 475 120.5
D 13 105 36924 302.5 490 475 120.5

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