ASTROSAT CZTI

Data Quality Report

Orbit 16434

Creation date: 2024-06-27T17:22:37.805967
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/AS1A05_069T03_9000002426_16434cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16434cztM0_level2_quad_clean.evt
Size (bytes)255,911,04045,555,840
Size244.1 MB 43.4 MB
Events in quadrant A1,966,952282,628
Events in quadrant B1,967,511290,943
Events in quadrant C1,810,985276,713
Events in quadrant D1,754,300270,155

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083311
B082161
C077891
D078371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A36533228.814673%
B36532697.363811%
C36532406.569943%
D36531895.173830%

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 3729 3654 52 52 1.39% 1.42%
B 3729 3654 13 13 0.35% 0.36%
C 3729 3654 1 1 0.03% 0.03%
D 3729 3654 4 4 0.11% 0.11%

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 15 174 230260 2459.26 450 439 93.5
A 0 226 3995 38.05 450 439 93.5
A 12 194 3410 31.79 450 439 93.5
B 15 35 93881 1044.68 449 437 89.4
B 0 198 31866 351.37 449 437 89.4
B 0 244 23419 256.93 449 437 89.4
C 14 238 65820 646.77 429 431 101.1
C 7 247 23676 229.92 429 431 101.1
C 0 207 17682 170.63 429 431 101.1
D 5 222 38867 350.69 442 427 109.6
D 12 218 17370 154.57 442 427 109.6
D 2 234 15578 138.22 442 427 109.6

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