ASTROSAT CZTI

Data Quality Report

Orbit 06362

Creation date: 2024-06-27T15:06:10.665856
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/AS1A02_124T01_9000000842_06362cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06362cztM0_level2_quad_clean.evt
Size (bytes)743,008,320135,506,880
Size708.6 MB 129.2 MB
Events in quadrant A5,169,179843,028
Events in quadrant B5,635,360850,253
Events in quadrant C4,961,356831,449
Events in quadrant D5,973,876800,814

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232363
B0242122
C0229242
D0258902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300
B02300
C02300
D02300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11251480.426629%
B11251780.693272%
C11251190.168874%
D112511771.573193%

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 11981 11254 3 3 0.03% 0.03%
B 11981 11254 9 9 0.08% 0.08%
C 11981 11254 0 0 0.00% 0.00%
D 11981 11254 77 77 0.64% 0.68%

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 15 236 167307 638.73 1274 1242 260.0
A 13 251 34437 127.68 1274 1242 260.0
A 8 15 25547 93.48 1274 1242 260.0
B 0 228 391678 1573.94 1290 1256 248.1
B 0 219 70254 278.16 1290 1256 248.1
B 15 204 69858 276.56 1290 1256 248.1
C 4 254 47947 161.75 1242 1244 288.7
C 1 241 24800 81.58 1242 1244 288.7
C 8 128 16572 53.09 1242 1244 288.7
D 4 95 400512 1334.42 1231 1191 299.2
D 2 63 293906 978.17 1231 1191 299.2
D 2 152 195743 650.14 1231 1191 299.2

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