ASTROSAT CZTI

Data Quality Report

Orbit 10094

Creation date: 2024-06-27T15:54:58.527094
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/AS1G07_072T01_9000001452_10094cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10094cztM0_level2_quad_clean.evt
Size (bytes)35,225,2808,196,480
Size33.6 MB 7.8 MB
Events in quadrant A256,12956,819
Events in quadrant B262,27251,488
Events in quadrant C236,70749,309
Events in quadrant D272,32745,456

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05337
B05139
C05339
D05442

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053434213
B056024495
C060104961
D065175399

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031
B031
C042
D032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54230.553506%
B51771.353965%
C49371.419878%
D49410.202429%

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 2716 880 0 0 0.00% 0.00%
B 2697 828 0 0 0.00% 0.00%
C 2699 773 0 0 0.00% 0.00%
D 2710 779 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 0 226 591 32.65 66 64 16.1
A 12 194 557 30.54 66 64 16.1
A 8 15 432 22.8 66 64 16.1
B 4 174 6744 460.21 62 61 14.5
B 4 81 3604 243.98 62 61 14.5
B 0 189 2286 153.22 62 61 14.5
C 10 22 9170 588.76 57 57 15.5
C 8 128 545 31.53 57 57 15.5
C 13 61 447 25.2 57 57 15.5
D 8 195 18864 1177.74 56 54 16.0
D 2 16 10006 623.12 56 54 16.0
D 2 152 9184 571.65 56 54 16.0

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