ASTROSAT CZTI

Data Quality Report

Orbit 25433

Creation date: 2024-06-27T19:17:35.899411
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/AS1A09_047T01_9000003714_25433cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25433cztM0_level2_quad_clean.evt
Size (bytes)587,672,640123,120,000
Size560.4 MB 117.4 MB
Events in quadrant A3,435,064864,589
Events in quadrant B3,383,367863,305
Events in quadrant C3,402,519823,152
Events in quadrant D7,151,605739,552

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142240
B0139550
C0140490
D0258720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275821.306773%
B6276981.561504%
C62761682.676864%
D6276119619.056724%

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 7620 6275 0 0 0.00% 0.00%
B 7621 6276 0 0 0.00% 0.00%
C 7621 6276 0 0 0.00% 0.00%
D 7621 6276 1078 1078 14.15% 17.18%

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 6 16 81295 469.62 870 854 171.3
A 13 254 9610 51.12 870 854 171.3
A 0 226 7519 38.91 870 854 171.3
B 0 230 49933 311.68 846 826 157.6
B 12 111 18519 112.3 846 826 157.6
B 11 111 16665 100.53 846 826 157.6
C 14 238 134284 712.05 822 828 187.4
C 7 247 55095 289.54 822 828 187.4
C 0 10 7677 36.54 822 828 187.4
D 1 52 3499448 18508.76 785 765 189.0
D 8 195 348902 1841.72 785 765 189.0
D 12 233 224287 1182.48 785 765 189.0

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