ASTROSAT CZTI

Data Quality Report

Orbit 03064

Creation date: 2024-06-27T14:24:09.711607
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/AS1G05_238T03_9000000424_03064cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03064cztM0_level2_quad_clean.evt
Size (bytes)337,547,52039,055,680
Size321.9 MB 37.2 MB
Events in quadrant A2,320,045210,671
Events in quadrant B2,445,572210,867
Events in quadrant C2,409,564204,626
Events in quadrant D2,702,129200,564

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103703
B0106722
C0108002
D0117942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507790.177270%
B5077170.334843%
C5077220.433327%
D50771032.028757%

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 9386 5079 3 3 0.03% 0.06%
B 9386 5079 10 10 0.11% 0.20%
C 9386 5079 18 18 0.19% 0.35%
D 9386 5079 105 105 1.12% 2.07%

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 15 78949 686.16 556 543 114.3
A 12 247 37903 326.95 556 543 114.3
A 14 238 30133 258.95 556 543 114.3
B 0 230 144854 1317.94 565 553 109.5
B 5 200 37064 333.47 565 553 109.5
B 15 204 29915 268.17 565 553 109.5
C 14 223 214188 1673.56 537 537 127.7
C 6 80 36435 281.19 537 537 127.7
C 1 16 28606 219.87 537 537 127.7
D 2 152 403675 2858.64 528 514 141.0
D 7 80 116265 820.74 528 514 141.0
D 2 136 29594 206.19 528 514 141.0

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