ASTROSAT CZTI

Data Quality Report

Orbit 23113

Creation date: 2024-06-27T18:50:03.757735
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/AS1A07_138T03_9000003412_23113cztM0_level2.evt modeM0/AS1A07_138T03_9000003412_23113cztM0_level2_quad_clean.evt
Size (bytes)152,251,20020,894,400
Size145.2 MB 19.9 MB
Events in quadrant A1,210,322119,649
Events in quadrant B1,040,516120,379
Events in quadrant C1,085,604115,597
Events in quadrant D1,120,974115,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051040
B045530
C046540
D047620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2221441.981090%
B222230.135014%
C2222100.450045%
D222240.180018%

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 2221 2221 33 33 1.49% 1.49%
B 2222 2222 4 4 0.18% 0.18%
C 2222 2222 1 1 0.05% 0.05%
D 2222 2222 3 3 0.14% 0.14%

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 230433 4370.99 254 248 52.7
A 13 254 3359 59.07 254 248 52.7
A 0 226 2278 38.55 254 248 52.7
B 0 190 20863 418.38 254 248 49.3
B 4 216 12193 242.42 254 248 49.3
B 3 209 6678 130.5 254 248 49.3
C 2 16 62752 1044.06 248 249 59.9
C 14 238 39620 657.66 248 249 59.9
C 0 207 10669 174.06 248 249 59.9
D 1 52 86948 1387.54 253 245 62.5
D 13 174 20079 317.41 253 245 62.5
D 12 233 11332 177.43 253 245 62.5

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