ASTROSAT CZTI

Data Quality Report

Orbit 43357

Creation date: 2024-06-27T22:50:58.456513
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/AS1A09_143T01_9000005870_43357cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43357cztM0_level2_quad_clean.evt
Size (bytes)308,825,28088,511,040
Size294.5 MB 84.4 MB
Events in quadrant A3,310,824576,594
Events in quadrant B2,508,410614,540
Events in quadrant C2,478,085594,851
Events in quadrant D2,741,526540,813

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129652
B0107222
C0103802
D0117032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50392354.663624%
B5039310.615201%
C503940.079381%
D5039410.813654%

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 7042 5040 195 195 2.77% 3.87%
B 7042 5040 22 22 0.31% 0.44%
C 7042 5040 1 1 0.01% 0.02%
D 7042 5040 39 39 0.55% 0.77%

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 10 83 527868 4669.45 552 541 112.9
A 15 237 429779 3800.88 552 541 112.9
A 13 248 209046 1846.3 552 541 112.9
B 0 189 125392 1168.69 561 546 106.8
B 5 172 79569 739.74 561 546 106.8
B 0 190 37775 348.5 561 546 106.8
C 15 214 211555 1627.19 555 559 129.7
C 3 233 81322 622.84 555 559 129.7
C 14 254 9516 69.08 555 559 129.7
D 1 52 342333 2558.45 547 531 133.6
D 13 249 125050 932.05 547 531 133.6
D 2 249 50950 377.4 547 531 133.6

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