ASTROSAT CZTI

Data Quality Report

Orbit 22049

Creation date: 2024-06-27T18:35:50.100406
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_047T08_9000003262_22049cztM0_level2.evt modeM0/AS1A07_047T08_9000003262_22049cztM0_level2_quad_clean.evt
Size (bytes)151,833,60038,957,760
Size144.8 MB 37.2 MB
Events in quadrant A951,422261,648
Events in quadrant B1,039,607264,910
Events in quadrant C917,819256,761
Events in quadrant D1,548,330247,897

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A113995111133069646
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042261
B044631
C041781
D060091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2042150.734574%
B2042271.322233%
C2042120.587659%
D2042884.309500%

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 2042 2042 4 4 0.20% 0.20%
B 2042 2042 15 15 0.73% 0.73%
C 2042 2042 0 0 0.00% 0.00%
D 2042 2042 70 70 3.43% 3.43%

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 15 236 12891 249.78 240 234 50.7
A 5 16 11730 226.87 240 234 50.7
A 13 254 3433 63.13 240 234 50.7
B 3 64 47820 1008.36 239 234 47.2
B 0 190 19184 401.55 239 234 47.2
B 0 229 9632 199.15 239 234 47.2
C 14 238 35520 657.6 224 224 53.7
C 3 233 5799 103.87 224 224 53.7
C 4 175 2991 51.55 224 224 53.7
D 7 38 240961 4285.18 225 218 56.2
D 1 52 125859 2236.39 225 218 56.2
D 12 233 99676 1770.33 225 218 56.2

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