ASTROSAT CZTI

Data Quality Report

Orbit 09615

Creation date: 2024-06-27T15:48:25.831383
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_238T01_9000001364_09615cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09615cztM0_level2_quad_clean.evt
Size (bytes)149,630,40023,071,680
Size142.7 MB 22.0 MB
Events in quadrant A1,060,365137,189
Events in quadrant B1,131,008137,738
Events in quadrant C1,093,373135,350
Events in quadrant D1,088,817124,412

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01683012282
B01713912407
C01671511942
D01818313610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165115
B0164115
C0163120
D0165125

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095
B074
C084
D087

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2235180.805369%
B2279321.404125%
C2346110.468883%
D2138140.654818%

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 8937 3516 0 0 0.00% 0.00%
B 8931 3565 0 0 0.00% 0.00%
C 8922 3661 0 0 0.00% 0.00%
D 8936 3383 0 0 0.00% 0.00%

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 2548 39.56 274 268 57.6
A 12 194 2328 35.74 274 268 57.6
A 13 14 2025 30.49 274 268 57.6
B 0 214 18344 324.24 279 273 55.7
B 0 219 13956 245.51 279 273 55.7
B 12 111 5991 102.6 279 273 55.7
C 8 128 4181 59.06 277 279 66.1
C 13 61 2080 27.26 277 279 66.1
C 8 112 1986 25.84 277 279 66.1
D 13 122 67211 1081.65 251 245 61.9
D 1 52 23904 382.14 251 245 61.9
D 2 234 9268 145.74 251 245 61.9

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