ASTROSAT CZTI

Data Quality Report

Orbit 23272

Creation date: 2024-06-27T18:52:07.724040
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/AS1A08_004T03_9000003438_23272cztM0_level2.evt modeM0/AS1A08_004T03_9000003438_23272cztM0_level2_quad_clean.evt
Size (bytes)180,904,32048,663,360
Size172.5 MB 46.4 MB
Events in quadrant A1,170,315331,251
Events in quadrant B1,178,994335,297
Events in quadrant C1,742,660310,579
Events in quadrant D1,211,559313,733

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051320
B051880
C068960
D053010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A254110.039355%
B254120.078709%
C2541441.731602%
D254260.236035%

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 2541 2541 0 0 0.00% 0.00%
B 2541 2541 1 1 0.04% 0.04%
C 2541 2541 24 24 0.94% 0.94%
D 2542 2542 6 6 0.24% 0.24%

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 2 79 15287 242.28 299 294 61.9
A 13 254 3474 51.39 299 294 61.9
A 0 226 2682 38.59 299 294 61.9
B 3 64 15717 263.48 294 286 58.6
B 5 172 6815 111.48 294 286 58.6
B 12 111 6671 109.02 294 286 58.6
C 10 9 559326 8492.01 277 280 65.8
C 0 207 55996 846.34 277 280 65.8
C 14 238 44683 674.49 277 280 65.8
D 1 52 33386 467.64 287 279 70.8
D 13 104 27157 379.65 287 279 70.8
D 1 239 21064 293.59 287 279 70.8

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