ASTROSAT CZTI

Data Quality Report

Orbit 29865

Creation date: 2024-06-27T20:08:26.955402
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/AS1T03_291T01_9000004278_29865cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29865cztM0_level2_quad_clean.evt
Size (bytes)584,579,520101,237,760
Size557.5 MB 96.5 MB
Events in quadrant A3,277,062673,172
Events in quadrant B5,355,138671,939
Events in quadrant C4,713,325626,880
Events in quadrant D3,900,267621,912

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139661
B0205331
C0187651
D0159961

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6772590.871234%
B67721151.698169%
C67721632.406970%
D6773891.314041%

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 7427 6773 1 1 0.01% 0.01%
B 7427 6773 1 1 0.01% 0.01%
C 7427 6773 18 18 0.24% 0.27%
D 7428 6774 30 30 0.40% 0.44%

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 8 192 15262 85.42 845 828 169.0
A 13 254 13628 75.75 845 828 169.0
A 3 137 8366 44.61 845 828 169.0
B 6 159 2039669 12773.9 835 813 159.6
B 12 111 19233 115.41 835 813 159.6
B 11 111 17340 103.55 835 813 159.6
C 3 233 1291414 6992.8 796 803 184.6
C 10 22 173691 936.74 796 803 184.6
C 14 238 130063 700.36 796 803 184.6
D 8 195 291119 1512.32 804 783 192.0
D 1 52 182048 944.19 804 783 192.0
D 13 153 141789 734.48 804 783 192.0

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