ASTROSAT CZTI

Data Quality Report

Orbit 07718

Creation date: 2024-06-27T15:23:05.408962
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/AS1G06_064T01_9000001066_07718cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07718cztM0_level2_quad_clean.evt
Size (bytes)230,322,24036,650,880
Size219.7 MB 35.0 MB
Events in quadrant A1,653,409223,730
Events in quadrant B1,959,301226,167
Events in quadrant C1,565,726224,138
Events in quadrant D1,585,855216,410

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069042
B077451
C067111
D067961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30682417.855280%
B306836111.766623%
C30681534.986962%
D30681655.378096%

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 3373 3068 9 9 0.27% 0.29%
B 3373 3068 96 96 2.85% 3.13%
C 3373 3068 0 0 0.00% 0.00%
D 3373 3068 1 1 0.03% 0.03%

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 15 234 87039 1010.59 406 396 85.7
A 0 23 4699 50.19 406 396 85.7
A 0 226 4132 43.58 406 396 85.7
B 4 239 350608 4339.01 399 388 80.7
B 0 219 16964 205.37 399 388 80.7
B 4 173 13631 164.07 399 388 80.7
C 8 222 3889 36.49 399 400 95.6
C 12 4 3556 33.01 399 400 95.6
C 13 61 3176 29.04 399 400 95.6
D 2 152 39949 389.44 403 389 101.6
D 13 104 14317 137.11 403 389 101.6
D 2 234 5166 47.03 403 389 101.6

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